blocks|key|3881768|text|想必，这就是您正在使用的Lombok+@Slf4j注释。如果你想让IntelliJ识别Lombok注解，你需要在IntelliJ中安装Lombok插件。否则，如果您尝试使用一个不存在的字段，您会期望什么呢？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3881769|entityMap|0|LINK|mutability|MUTABLE|url|http://projectlombok.org/features/Log.html^0|C|D|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Presumably, that's the <a href="http://projectlombok.org/features/Log.html">Lombok @Slf4j</a> annotation you're using. You'll need to install the Lombok plugin in IntelliJ if you want IntelliJ to recognize Lombok annotations. Otherwise, what do you expect if you try to use a field that doesn't exist?

blocks|key|1503724|text|除了having+Lombok+plugin+installed之外，还要确保勾选了下面的"Enable+annotation+processing“复选框：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1503725|Preferences+>+Compiler+>+Annotation+Processors|code-block|syntax|javascript|1503726|注意：从IntelliJ+2017开始，"Enable+Annotation+Processing“复选框已移至：|BOLD|1503727|Settings+>+Build,+Execution,+Deployment+>+Compiler+>+Annotation+Processors|1503728|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/46934215/3061686^0|1A|S|2|U|0|0|0|0|3|L|S|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@$9|10|A|11|1|12]]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@$9|15|A|16|B|M]|$9|17|A|18|B|C]]|D|@]|E|$]]|$1|N|3|O|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|P|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|Q|$R|$5|S|T|U|E|$V|W]]]]

In addition to <a href="https://stackoverflow.com/a/46934215/3061686">having Lombok plugin installed</a>, also make sure that the "<code>Enable annotation processing</code>" checkbox is ticked under:

<pre><code>Preferences &gt; Compiler &gt; Annotation Processors
</code></pre>

Note: starting with IntelliJ 2017, the "<code>Enable Annotation Processing</code>" checkbox has moved to:

<pre><code>Settings &gt; Build, Execution, Deployment &gt; Compiler &gt; Annotation Processors
</code></pre>

blocks|key|1771150|text|在IDEA+13中，这似乎不再是问题，你只需要安装Lombok插件即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771151|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In IDEA 13 this seems to no longer be an issue, you just have to have the Lombok plugin installed.

blocks|key|1508186|text|我可能是在揭开一个已死的主题，但一个简单的解决方案是，如果您包含核心logback、和logback-classic.，请检查您的依赖项(例如Maven)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1508187|Slf4j只是一个接口，你需要它背后的具体实现才能工作。|1508188|我已经被IDEA搞砸了两次，现在我可以开始了:D|1508189|entityMap^0|17|F|0|0|5|0|4|4|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|K|$]]

I might be ungraving a dead topic but a simple solution is to check in your dependencies (Maven's pom for exemple) if you are including logback-core and logback-classic.

Slf4j is just the interface, you need the concrete implementation behind it to work.

I've been tricked twice with IDEA messing it up, now I'm good to go :D

blocks|key|3881925|text|当在JDK8下编译时，我在旧版本的Lombok上看到了这个问题。将项目重新设置为JDK7使问题消失。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3881926|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I was seeing this issue with an older version of Lombok when compiling under JDK8. Setting the project back to JDK7 made the issue go away.

blocks|key|1771308|text|在Intellij版本2016、2017中，启用首选项->编译器->注释处理器对我不起作用！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771309|以下附加复选框有帮助：|1771310|📷|atomic|offset|length|1771311|​|1771312|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/a7d4baf1dae1d1e0b122408e60591b2c.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|V|8|@]|9|@$G|W|H|X|1|Y]]|A|$]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R|S|-4]]]]

In Intellij version 2016, 2017, enable Preferences -> Compiler -> Annotation Processors does not work for me!

The following additional checkbox helps: <a href="https://i.stack.imgur.com/y6Xs8.png" rel="noreferrer"><img src="https://i.stack.imgur.com/y6Xs8.png" alt="enter image description here"></a>

blocks|key|3882051|text|2019:|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3882052|得到一个插件，你就可以排序了.|3882053|文件>设置>插件|3882054|​|3882055|📷|atomic|3882056|3882057|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/b92dd4c3d0b11d243571d1030ab9d07f.png|imageAlt^0|0|5|0|0|0|8|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|15|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|16|8|@]|D|@$9|17|A|18|1|19]]|E|$]]|$1|O|3|K|5|6|7|1A|8|@]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|Q|$R|$5|S|T|U|E|$V|W|X|-4]]]]

2019:

Get a plugin and you are sorted...

File > Settings > Plugins

<a href="https://i.stack.imgur.com/ZG8kU.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ZG8kU.png" alt="enter image description here"></a>

blocks|key|5299161|text|我刚刚安装了最新的idea+verion+2108.1并发现了这个问题，安装了lombok插件并重新启动Idea解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299162|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I've just installed the latest idea verion 2108.1 and found this issue, after installed lombok plugin and restart the Idea resolve it.

blocks|key|1508288|text|这对我来说很有效：File+->+Settings+->+Build,+Execution,+Deployment+->+Compiler+->+Annotation+Processor|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1508289|勾选“启用批注处理”。Apply|1508290|关|1508291|entityMap^0|9|2C|0|B|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|R|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|K|$]]

This worked for me :
<code>File -&gt; Settings -&gt; Build, Execution, Deployment -&gt; Compiler -&gt; Annotation Processor</code>

Tick on 'enable annotation processing'.
<code>Apply</code>

Close

blocks|key|1508316|text|这不是OP的问题，但对于尝试了所有方法都没有成功的其他人来说：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1508317|我也有类似的症状。每当我在mvn+clean之后构建时，它都找不到log、getXYZ()、builder()或任何东西。|offset|length|style|CODE|1508318|[ERROR]+++symbol:+++variable+log
[ERROR]+++location:+class+com.example.MyClass
[ERROR]+/Path/To/Some/Java/src/main/com/example/MyClass.java:[30,38]+cannot+find+symbol
[ERROR]+++symbol:+++method+builder()
[ERROR]+++location:+class+com.example.MyClass|code-block|syntax|javascript|1508319|在阅读了我能找到的关于QueryDSL/JPA/Hibernate/Lombok/IntelliJ/Maven问题的所有答案都无济于事之后，我发现罪魁祸首是在静态字段上注释的+@Getter+方法的单个静态导入。|BOLD|1508320|Spring+1.15.14.Relase，Intellij+2019.1.1|1508321|@SpringBootApplication
public+class+BarApplication+implements+ApplicationContextAware+{
++@Getter
++private+static+ApplicationContext+applicationContext;

++//+...+start+Spring+application,+and+grab+hold+of+ApplicationContext+as+it+comes+past
}|1508322|import+...
import+static+BarApplication.getApplicationContext;

@Slf4j
public+class+IMakeItAllFail+{
+++public+IMakeItAllFail()+{
++++++log.info("{}",+getApplicationContext());
+++}
}|1508323|@Slf4j
public+class+Foo+{
++Foo()+{
++++log.info("I+fail+to+compile+but+I+have+nothing+to+do+with+the+other+classes!");
++}
}|1508324|entityMap^0|0|D|9|X|3|11|8|1A|9|0|0|2G|7|2O|A|2G|7|0|0|13|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@$D|11|E|12|F|G]|$D|13|E|14|F|G]|$D|15|E|16|F|G]|$D|17|E|18|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|19|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1A|8|@$D|1B|E|1C|F|O]|$D|1D|E|1E|F|O]|$D|1F|E|1G|F|G]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1H|8|@$D|1I|E|1J|F|O]]|9|@]|A|$]]|$1|R|3|S|5|J|7|1K|8|@]|9|@]|A|$K|L]]|$1|T|3|U|5|J|7|1L|8|@]|9|@]|A|$K|L]]|$1|V|3|W|5|J|7|1M|8|@]|9|@]|A|$K|L]]|$1|X|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]]|Y|$]]

This won't have been OP's problem, but for anyone else who tries everything with no success:

I had similar symptoms. Whenever I built after a <code>mvn clean</code>, it wouldn't find <code>log</code>, or <code>getXYZ()</code>, or <code>builder()</code>, or anything.

<pre><code>[ERROR] symbol: variable log
[ERROR] location: class com.example.MyClass
[ERROR] /Path/To/Some/Java/src/main/com/example/MyClass.java:[30,38] cannot find symbol
[ERROR] symbol: method builder()
[ERROR] location: class com.example.MyClass
</code></pre>

After reading every answer I could find about QueryDSL/JPA/Hibernate/Lombok/IntelliJ/Maven issues to no avail, I worked out that the culprit was a single static import of a <code>@Getter</code> method that was annotated on a static field.

Spring 1.15.14.RELEASE, Intellij 2019.1.1

<pre><code>@SpringBootApplication
public class BarApplication implements ApplicationContextAware {
 @Getter
 private static ApplicationContext applicationContext;

 // ... start Spring application, and grab hold of ApplicationContext as it comes past
}
</code></pre>

<pre><code>import ...
import static BarApplication.getApplicationContext;

@Slf4j
public class IMakeItAllFail {
 public IMakeItAllFail() {
 log.info("{}", getApplicationContext());
 }
}
</code></pre>

<pre><code>@Slf4j
public class Foo {
 Foo() {
 log.info("I fail to compile but I have nothing to do with the other classes!");
 }
}
</code></pre>

blocks|key|1771507|text|在启用注释处理器并安装lombok插件后，它仍然不起作用。我们通过选中Idea选项"Delegate+IDE+build+to+gradle“来解决这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771508|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

After enabling annotation processors and installing the lombok plugin, it still didn't work. We worked around it by checking the Idea option "Delegate IDE build to gradle"

blocks|key|3882255|text|为我工作！它在CircleCI和Jenkins上都失败了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3882256|如果您是Gradle用户，请尝试将以下内容添加到依赖项中：|3882257|dependencies+{
++++//Other+Dependencies+>>

++++//LOMBOK+Dependencies
++++annotationProcessor+'org.projectlombok:lombok'
++++compileOnly+'org.projectlombok:lombok'
++++testAnnotationProcessor+'org.projectlombok:lombok'
++++testCompileOnly+'org.projectlombok:lombok'
}|code-block|syntax|javascript|3882258|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Worked for me!!! It was failing on CircleCI &amp; on Jenkins as well.
If you're a Gradle User try add the following into your dependencies:
<pre><code>dependencies {
 //Other Dependencies &gt;&gt;

 //LOMBOK Dependencies
 annotationProcessor 'org.projectlombok:lombok'
 compileOnly 'org.projectlombok:lombok'
 testAnnotationProcessor 'org.projectlombok:lombok'
 testCompileOnly 'org.projectlombok:lombok'
}
</code></pre>

blocks|key|5299288|text|对我来说，解决问题的方法是勾选Maven设置中的复选框"Use+plugin+registry“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299289|路径为:+File+->+Preferences+->+Build，Execution，Deployment+->+Build+Tools+->+Maven|5299290|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

What sorted out things for me was to tick the checkbox "Use plugin registry" in Maven settings.

The path is: File -> Preferences -> Build, Execution, Deployment -> Build Tools -> Maven

blocks|key|5299310|text|我尝试了几乎所有提到的答案，但对我来说都不起作用。我的gradle构建每次都会失败。我刚刚找到了这个解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299311|在build.gradle中添加annotationProcessor+'org.projectlombok:lombok'。|offset|length|style|CODE|5299312|这对我很有效。|5299313|entityMap^0|0|G|1A|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

I tried almost all of the mentioned answers but nothing worked for me. My gradle build was failing every time. Just found this solution:

Add <code>annotationProcessor 'org.projectlombok:lombok'</code>
in your build.gradle.

This worked for me.

blocks|key|1771572|text|从类中删除@Slf4J注释，然后重新添加它对我有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771573|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Removing the @Slf4J annotation from the class and then re-adding it worked for me.

blocks|key|1771608|text|1我的gradle+lombok依赖：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771609|implementation+'org.projectlombok:lombok:1.18.10'
annotationProcessor+'org.projectlombok:lombok:1.18.10'|code-block|syntax|javascript|1771610|2启用“注解...”后在IDEA+(设置)中，考虑到您已经安装了Lombok插件，这解决了我的相同问题|1771611|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

1 My gradle lombok dependecies:

<pre><code>implementation 'org.projectlombok:lombok:1.18.10'
annotationProcessor 'org.projectlombok:lombok:1.18.10'
</code></pre>

2 After enabling "Annotations..." in IDEA (Settings), taking into account that you have installed Lombok plugin, that resolved my the same issue

blocks|key|1508385|text|这不是IntelliJ的问题。如果您尝试在控制台下运行mvn+install，也会中断。来自lombok.extern的所有批注都需要添加依赖项。此程序包对以下注释进行分组：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1508386|1508387|CommonsLog|unordered-list-item|1508388|Flogger|1508389|Log|1508390|JBossLog|1508391|Log4|1508392|Log4j2|1508393|Slf4j|1508394|XSlf4j|1508395|1508396|例如，对于Slf4j，有必要将此依赖项添加到pom.xml中|1508397|<dependency>
++++<groupId>org.slf4j</groupId>
++++<artifactId>slf4j-api</artifactId>
++++<version>${slf4j.version}</version>
</dependency>|code-block|syntax|javascript|1508398|entityMap^0|1A|D|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|1B|8|@]|D|@]|E|$]]|$1|J|3|K|5|I|7|1C|8|@]|D|@]|E|$]]|$1|L|3|M|5|I|7|1D|8|@]|D|@]|E|$]]|$1|N|3|O|5|I|7|1E|8|@]|D|@]|E|$]]|$1|P|3|Q|5|I|7|1F|8|@]|D|@]|E|$]]|$1|R|3|S|5|I|7|1G|8|@]|D|@]|E|$]]|$1|T|3|U|5|I|7|1H|8|@]|D|@]|E|$]]|$1|V|3|W|5|I|7|1I|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|1K|8|@]|D|@]|E|$]]|$1|10|3|11|5|12|7|1L|8|@]|D|@]|E|$13|14]]|$1|15|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|16|$]]

Itsn't a IntelliJ problem. If you try under console, run mvn install, also breaks. All annotations from lombok.extern needed add dependencies. This package groups the next annotations:

<ul>
<li>CommonsLog</li>
<li>Flogger</li>
<li>Log</li>
<li>JBossLog</li>
<li>Log4</li>
<li>Log4j2</li>
<li>Slf4j</li>
<li>XSlf4j</li>
</ul>

For example, for Slf4j it's necessary add this dependency to your pom.xml

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
 &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt;
 &lt;version&gt;${slf4j.version}&lt;/version&gt;
&lt;/dependency&gt;
</code></pre>

blocks|key|3882352|text|如果您使用的是maven，请尝试将Lombok+path添加到批注处理器的maven-compiler-plugin列表中，如下所示。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3882353|++++++++<plugin>
++++++++++++<groupId>org.apache.maven.plugins</groupId>
++++++++++++<artifactId>maven-compiler-plugin</artifactId>
++++++++++++<version>3.8.1</version>
++++++++++++<configuration>
++++++++++++++++<source>1.8</source>
++++++++++++++++<target>1.8</target>
++++++++++++++++<annotationProcessorPaths>
++++++++++++++++++++<path>
++++++++++++++++++++++++<groupId>org.mapstruct</groupId>
++++++++++++++++++++++++<artifactId>mapstruct-processor</artifactId>
++++++++++++++++++++++++<version>1.3.0.Final</version>
++++++++++++++++++++</path>
++++++++++++++++++++<path>
++++++++++++++++++++++++<groupId>org.projectlombok</groupId>
++++++++++++++++++++++++<artifactId>lombok</artifactId>
++++++++++++++++++++++++<version>1.18.10</version>
++++++++++++++++++++</path>
++++++++++++++++</annotationProcessorPaths>
++++++++++++</configuration>
++++++++</plugin>|code-block|syntax|javascript|3882354|根据您的Lombok版本更改版本。除此之外，请确保您已经完成了以下操作|3882355|在File+->+Settings+->+Build,+Execution,+Deployment+->+Compiler+->+Annotation+Processor下，|3882356|为您的项目安装了用于Intellij.|unordered-list-item|3882357|Enabled批注处理的Lombok插件。对我来说，Obtain+processors+from+project+classpath和Processor+path都很好用。所以不确定哪种方法对你有效，但请尝试哪种方法有效。|3882358|3882359|而不是在黑暗中拍摄几个小时。稍微阅读一下注释处理器是如何工作的，以及编译器是如何使用的，这可能会有所帮助。因此，请快速阅读下面的内容。|3882360|http://hannesdorfmann.com/annotation-processing/annotationprocessing101|3882361|entityMap|0|LINK|mutability|MUTABLE|url^0|11|L|0|0|0|1|2C|0|0|Q|14|1V|E|0|0|0|0|1Z|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|19|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|O|3|P|5|Q|7|1D|8|@]|D|@]|E|$]]|$1|R|3|S|5|Q|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1K|8|@]|D|@]|E|$]]|$1|W|3|X|5|6|7|1L|8|@]|D|@$9|1M|A|1N|1|1O]]|E|$]]|$1|Y|3|-4|5|6|7|1P|8|@]|D|@]|E|$]]]|Z|$10|$5|11|12|13|E|$14|X]]]]

If you are using maven, try adding Lombok path to <code>maven-compiler-plugin</code> list of annotation processor as shown below.

<pre><code> &lt;plugin&gt;
 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
 &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
 &lt;version&gt;3.8.1&lt;/version&gt;
 &lt;configuration&gt;
 &lt;source&gt;1.8&lt;/source&gt;
 &lt;target&gt;1.8&lt;/target&gt;
 &lt;annotationProcessorPaths&gt;
 &lt;path&gt;
 &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
 &lt;artifactId&gt;mapstruct-processor&lt;/artifactId&gt;
 &lt;version&gt;1.3.0.Final&lt;/version&gt;
 &lt;/path&gt;
 &lt;path&gt;
 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
 &lt;version&gt;1.18.10&lt;/version&gt;
 &lt;/path&gt;
 &lt;/annotationProcessorPaths&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
</code></pre>

Change the version as per your version of Lombok. Other than that ensure you have done the following

<ul>
<li>installed the Lombok plugin for Intellij.</li>
<li>Enabled annotation processing for your project under <code>File -&gt; Settings -&gt; Build, Execution, Deployment -&gt; Compiler -&gt; Annotation Processor</code>. For me both, <code>Obtain processors from project classpath</code> and <code>Processor path</code> is working. So not sure what will work for you, but try whichever works.</li>
</ul>

And rather than shooting in the dark for hours. Reading a little bit how annotation processors work and are used by compiler may help. so have quick read below.

<a href="http://hannesdorfmann.com/annotation-processing/annotationprocessing101" rel="noreferrer">http://hannesdorfmann.com/annotation-processing/annotationprocessing101</a>

blocks|key|5299423|text|删除每个模块中的.idea文件夹和.iml文件，然后重新生成解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299424|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Delete .idea folder and .iml files in each module and rebuild the solution.

blocks|key|5299439|text|我启用了Lombok插件，启用了注解，它可以从命令行编译所有东西，但它仍然没有将我的项目视为maven+(所有maven依赖项在源文件中都是红色的)。然后我点击SHIFT两次，搜索“Maven”，结果中有“重新加载所有Maven项目”。运行它后，Maven选项卡出现，我可以编译了，源代码中所有的红色下划线都消失了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299440|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had Lombok plugin, annotations enabled, it was compiling from command line - everything and it still did not see my project as maven (all maven dependencies were red in source files). Then I clicked SHIFT twice and searched for 'maven' and among results there was 'Reload all Maven Projects'. After running it Maven tab appeared and I was able to compile, and all red underlining in source code disappeared.

blocks|key|1503976|text|一件简单的事情，但我弄明白了:我错过了将@Log添加到类中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1503977|@Log
public+class+YourClassName+{


}|code-block|syntax|javascript|1503978|这可能会对某些人有所帮助。|1503979|entityMap^0|K|4|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

A simple thing but I figured it out is: I missed adding <code>@Log</code> to the class.
<pre><code>@Log
public class YourClassName {


}
</code></pre>
It may help someone.

blocks|key|1771748|text|我也有同样的问题:我使用gradle和IDEA；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771749|事实证明，这是由错误的gradle版本引起的。|1771750|在gradle\wrapper\gradle-wrapper.properties中，它是：|1771751|distributionUrl=https\://services.gradle.org/distributions/gradle-4.8-bin.zip|offset|length|style|CODE|1771752|但是，我将IDEA中的版本指定为|1771753|D:\Library\gradle-5.2.1|1771754|在将gradle版本降低到4.10.x之后，这个问题就消失了。|1771755|entityMap^0|0|0|0|0|25|0|0|0|N|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|W|8|@$H|X|I|Y|J|K]]|9|@]|A|$]]|$1|L|3|M|5|6|7|Z|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|10|8|@$H|11|I|12|J|K]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|13|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|S|$]]

I have the same issue; I use gradle and IDEA;
It turns out that, it's caused by the wrong version of gradle.
In gradle\wrapper\gradle-wrapper.properties, it is:
<code>distributionUrl=https\://services.gradle.org/distributions/gradle-4.8-bin.zip</code>
However, I specified the version in IDEA to be
<code>D:\Library\gradle-5.2.1</code>
After lower the gradle version to be 4.10.x, the issue is gone.

blocks|key|3882448|text|尝试在项目基目录下创建lombok.config文件，并提供lombok.log.fieldName值。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|3882449|示例：lombok.log.fieldName+=+LOG|3882450|entityMap^0|3|5|B|D|U|K|0|3|Q|0^^$0|@$1|2|3|4|5|6|7|K|8|@$9|L|A|M|B|C]|$9|N|A|O|B|D]|$9|P|A|Q|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|R|8|@$9|S|A|T|B|D]]|E|@]|F|$]]|$1|I|3|-4|5|6|7|U|8|@]|E|@]|F|$]]]|J|$]]

Try to create <code>lombok.config</code> file under project base directory and provide <code>lombok.log.fieldName</code> value.
Example: <code>lombok.log.fieldName = LOG</code>

blocks|key|1504037|text|此处需要遵循以下步骤：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1504038|步骤1.在文件->设置->生成、执行、部署->编译器->批注处理器下，为项目启用了批注处理|1504039|屏幕截图|1504040|📷|atomic|1504041|​|1504042|步骤2.在重新启动集成开发环境后，在IntelliJ集成开发环境中安装lombok插件。屏幕截图|1504043|1504044|1504045|1504046|步骤3.在build.gradle文件中添加依赖项。|1504047|+compileOnly+'org.projectlombok:lombok:1.18.12'
+annotationProcessor+'org.projectlombok:lombok:1.18.12'|code-block|syntax|javascript|1504048|如果您在测试中使用lombok，则需要添加：|1504049|testCompileOnly+'org.projectlombok:lombok:1.18.12'++
testAnnotationProcessor+'org.projectlombok:lombok:1.18.12'|1504050|或https://developervisits.wordpress.com/2020/09/16/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log/|1504051|希望这个答案对你有帮助。|1504052|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/d14b8234527bfb821d079661261d4926.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/ec903a8ec2c0261822de13a54ef4eec0.png|2|LINK|MUTABLE|url|https://developervisits.wordpress.com/2020/09/16/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log/^0|0|B|0|0|19|0|0|4|0|0|1|0|1|0|0|0|1|0|0|1C|0|0|1|0|0|1|0|1|1|0|0|1|0|0|Q|0|0|2V|0|0|M|0|0|33|0|0|36|1|35|2|0|0|C|0^^$0|@$1|2|3|4|5|6|7|1O|8|@$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1R|8|@$9|1S|A|1T|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1U|8|@$9|1V|A|1W|B|C]]|D|@]|E|$]]|$1|J|3|K|5|L|7|1X|8|@$9|1Y|A|1Z|B|C]]|D|@$9|20|A|21|1|22]]|E|$]]|$1|M|3|N|5|6|7|23|8|@$9|24|A|25|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|26|8|@$9|27|A|28|B|C]]|D|@]|E|$]]|$1|Q|3|N|5|6|7|29|8|@$9|2A|A|2B|B|C]]|D|@]|E|$]]|$1|R|3|K|5|L|7|2C|8|@$9|2D|A|2E|B|C]]|D|@$9|2F|A|2G|1|2H]]|E|$]]|$1|S|3|N|5|6|7|2I|8|@$9|2J|A|2K|B|C]]|D|@]|E|$]]|$1|T|3|U|5|6|7|2L|8|@$9|2M|A|2N|B|C]]|D|@]|E|$]]|$1|V|3|W|5|X|7|2O|8|@$9|2P|A|2Q|B|C]]|D|@]|E|$Y|Z]]|$1|10|3|11|5|6|7|2R|8|@$9|2S|A|2T|B|C]]|D|@]|E|$]]|$1|12|3|13|5|X|7|2U|8|@$9|2V|A|2W|B|C]]|D|@]|E|$Y|Z]]|$1|14|3|15|5|6|7|2X|8|@$9|2Y|A|2Z|B|C]]|D|@$9|30|A|31|1|32]]|E|$]]|$1|16|3|17|5|6|7|33|8|@$9|34|A|35|B|C]]|D|@]|E|$]]|$1|18|3|-4|5|6|7|36|8|@]|D|@]|E|$]]]|19|$1A|$5|1B|1C|1D|E|$1E|1F|1G|-4]]|1H|$5|1B|1C|1D|E|$1E|1I|1G|-4]]|1J|$5|1K|1C|1L|E|$1M|1N]]]]

There is the following step to be followed here:
Step 1. Enabled annotation processing for your project under File -&gt; Settings -&gt; Build, Execution, Deployment -&gt; Compiler -&gt; Annotation Processor
Screenshot
<a href="https://i.stack.imgur.com/Y7mgG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Y7mgG.png" alt="enter image description here" /></a>
Step 2. Install lombok plugin in IntelliJ IDE after that restart IDE.
Screenshot
<a href="https://i.stack.imgur.com/sSwr4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sSwr4.png" alt="enter image description here" /></a>
Step 3. Add the dependency in build.gradle file.
<pre><code> compileOnly 'org.projectlombok:lombok:1.18.12'
 annotationProcessor 'org.projectlombok:lombok:1.18.12'
</code></pre>
In case you are using lombok in tests you need to add:
<pre><code>testCompileOnly 'org.projectlombok:lombok:1.18.12' 
testAnnotationProcessor 'org.projectlombok:lombok:1.18.12'
</code></pre>
or <a href="https://developervisits.wordpress.com/2020/09/16/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log/" rel="nofollow noreferrer">https://developervisits.wordpress.com/2020/09/16/building-with-lomboks-slf4j-and-intellij-cannot-find-symbol-log/</a>
hope this answer is helpful for you.

blocks|key|1771857|text|我遇到了同样的错误，就在下面这样的警告之后：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771858|java:+You+aren't+using+a+compiler+supported+by+lombok,+so+lombok+will+not+work+and+has+been+disabled.
++Your+processor+is:+com.sun.proxy.$Proxy27
++Lombok+supports:+OpenJDK+javac,+ECJ|code-block|syntax|javascript|1771859|在我的例子中，它是an+unfortunate+combination+of+lombok+<+1.18.16+and+IDEA+2020.3。|offset|length|1771860|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/mplushnikov/lombok-intellij-plugin/issues/988^0|0|0|9|1Q|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

I had the same kind of error, right after a warning like the following:
<pre class="lang-none prettyprint-override"><code>java: You aren't using a compiler supported by lombok, so lombok will not work and has been disabled.
 Your processor is: com.sun.proxy.$Proxy27
 Lombok supports: OpenJDK javac, ECJ
</code></pre>
In my case, it was <a href="https://github.com/mplushnikov/lombok-intellij-plugin/issues/988" rel="nofollow noreferrer">an unfortunate combination of lombok &lt; 1.18.16 and IDEA 2020.3</a>.

blocks|key|1771887|text|因此，即使在启用注释处理并安装Lombok插件之后，问题仍然存在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1771888|有一个包含IDEA+2020.3和Lombok的issue，你可以通过遵循this+fix来解决这个问题。|offset|length|1771889|基本上，将-Djps.track.ap.dependencies=false添加到VM选项中，您可以在:首选项->编译器中找到它。命名为'Shared+build+process+VM+Options‘|style|CODE|1771890|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/mplushnikov/lombok-intellij-plugin/issues/952|1|https://github.com/rzwitserloot/lombok/issues/2592^0|0|O|5|0|11|8|1|0|5|X|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]|$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|6|7|11|8|@$D|12|E|13|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]]]

So if the issue persists even after enabling the annotation processing and installing the Lombok plugin.
There's an <a href="https://github.com/mplushnikov/lombok-intellij-plugin/issues/952" rel="noreferrer">issue</a> with IDEA 2020.3 and Lombok, you could fix this by following <a href="https://github.com/rzwitserloot/lombok/issues/2592" rel="noreferrer">this fix</a>.
basically, add <code>-Djps.track.ap.dependencies=false</code> to the VM options, you can find it in: Preferences -&gt; Compiler. Named 'Shared build process VM Options'

blocks|key|3882544|text|这是另一个相关的帖子，可以解决用户使用lombook和IntelliJ+2020.3+CommunityEdition时的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3882545|entityMap^0|J|7|R|W|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

This is another related post <a href="https://stackoverflow.com/questions/65095215/lombok-not-working-with-intellij-2020-3-community-edition">Lombok not working with IntelliJ 2020.3 Community Edition</a> which may resolve the question when user use <code>lombook</code> and <code>IntelliJ 2020.3 CommunityEdition</code>.

blocks|key|5299651|text|这就是为什么IntelliJ没有找到我的maven依赖项的问题:我在pom中的其他地方有一个重复的标记"dependencies“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299652|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Here's the problem I had why IntelliJ didn't find my maven dependency: I had a duplicate tag &quot;dependencies&quot; somewhere else in the pom.

blocks|key|1508549|text|使用此依赖项并尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1508550|<dependency>
++++<groupId>org.slf4j</groupId>
++++<artifactId>slf4j-api</artifactId>
++++<version>1.7.30</version>
</dependency>|code-block|syntax|javascript|1508551|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use this dependency and try:
<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
 &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt;
 &lt;version&gt;1.7.30&lt;/version&gt;
&lt;/dependency&gt;
</code></pre>

blocks|key|1508560|text|IDEA+2021仍然存在这个问题，要解决这个问题，请确保您的项目依赖项中包含最新版本的lombok。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1508561|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

IDEA 2021 and still have the issue, to solve it make sure that you have the last version of lombok in your project dependencies.

blocks|key|3882672|text|对我来说，如果你使用的是Maven，它就会起作用。我在我的spring+boot项目的pom.xml中添加了这个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3882673|<dependency>
++++<groupId>org.projectlombok</groupId>
++++<artifactId>lombok</artifactId>
</dependency>|code-block|syntax|javascript|3882674|然后在我重启IntelliJ之后，当输入@Slf4j自动导入库时，您只需使用control%2Bspace。|3882675|不要忘记在以下位置启用注释处理:+Settings+>+Build，Execution，Deployment+>+Compiler+>+Annotation+Processor|3882676|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

For me, it works if you are using Maven.
I added this in pom.xml of my spring boot project.
<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
Then after I restart IntelliJ, you just control+space when typing @Slf4j to auto-import the lib.
and don't forget to enable the Enable Annotation Processing in:
Settings &gt; Build, Execution, Deployment &gt; Compiler &gt; Annotation Processors

blocks|key|1772023|text|如果有人仍然面临这个问题，那不是因为IntelliJ，而是你需要为maven编译器插件指定批注处理器(当然，如果你使用maven)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1772024|++++++++++++<plugin>
++++++++++++++++++++<groupId>org.apache.maven.plugins</groupId>
++++++++++++++++++++<artifactId>maven-compiler-plugin</artifactId>
++++++++++++++++++++<version>3.8.0</version>
++++++++++++++++++++<configuration>
++++++++++++++++++++++++<source>11</source>
++++++++++++++++++++++++<target>11</target>
++++++
++++++++++++++++++++++++++++<annotationProcessorPath>
++++++++++++++++++++++++++++++++<groupId>org.projectlombok</groupId>
++++++++++++++++++++++++++++++++<artifactId>lombok</artifactId>
++++++++++++++++++++++++++++++++<version>1.18.12</version>
++++++++++++++++++++++++++++</annotationProcessorPath>

++++++++++++++++++++++++</annotationProcessorPaths>
++++++++++++++++++++</configuration>
+++++++++++++</plugin>+
++++```|code-block|syntax|javascript|1772025|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If anyone facing this issue still, it is not because of IntelliJ but you need to specify annotation processor for the maven compiler plugin (of cause if you are using maven)
<pre><code> &lt;plugin&gt;
 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
 &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
 &lt;version&gt;3.8.0&lt;/version&gt;
 &lt;configuration&gt;
 &lt;source&gt;11&lt;/source&gt;
 &lt;target&gt;11&lt;/target&gt;
 
 &lt;annotationProcessorPath&gt;
 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
 &lt;version&gt;1.18.12&lt;/version&gt;
 &lt;/annotationProcessorPath&gt;

 &lt;/annotationProcessorPaths&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt; 
 ```
</code></pre>

blocks|key|5299829|text|使用的编译器javac是14或17，而项目的目标版本是1.8|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5299830|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

the compiler javac used was 14 or 17 while the project has the target version 1.8

blocks|key|1772072|text|没有一个答案说明你的项目中可能有不正确的依赖关系，如果你使用的是spring+boot，那么依赖关系定义就很简单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1772073|++++<dependency>
++++++++<groupId>org.projectlombok</groupId>
++++++++<artifactId>lombok</artifactId>
++++++++
++++++++<type>jar</type>
++++</dependency>|code-block|syntax|javascript|1772074|但是如果你没有使用spring+boot，你可以导入所有依赖项：|1772075|++++++++
++++++++<dependency>
++++++++++++<groupId>org.slf4j</groupId>
++++++++++++<artifactId>slf4j-simple</artifactId>
++++++++++++<version>1.8.0-beta2</version>
++++++++</dependency>

++++++++<dependency>
++++++++++++<groupId>ch.qos.logback</groupId>
++++++++++++<artifactId>logback-classic</artifactId>
++++++++++++<version>1.1.5</version>
++++++++</dependency>
++++++++
++++++++<dependency>
++++++++++++<groupId>org.projectlombok</groupId>
++++++++++++<artifactId>lombok</artifactId>
++++++++++++<version>1.18.12</version>
++++++++++++<type>jar</type>
++++++++</dependency>
++++++++|1772076|假设您已在中启用了plugin并激活了"Enable+Annotation+Processing"复选框：|offset|length|style|CODE|1772077|SettingsCtrl%2BAlt%2BS+>生成、执行、部署>编译器>批注处理器|BOLD|1772078|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/46934215/3061686^0|0|0|0|0|J|U|9|6|0|0|0|8|K|8|T|3|X|5|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|12|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|13|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|14|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|15|8|@$M|16|N|17|O|P]]|9|@$M|18|N|19|1|1A]]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@$M|1C|N|1D|O|S]|$M|1E|N|1F|O|S]|$M|1G|N|1H|O|S]|$M|1I|N|1J|O|S]]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10]]]]

None of the answers address the fact that you might have incorrect dependencies in your project, if you are using spring boot the dependency definition is easy:
<pre><code> &lt;dependency&gt;
 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
 &lt;!--&lt;version&gt;1.18.12&lt;/version&gt; you dont need to specify a version--&gt;
 &lt;type&gt;jar&lt;/type&gt;
 &lt;/dependency&gt;
</code></pre>
But if you are not using spring boot you can import all dependencies:
<pre><code> &lt;!--region Lombok Configuration --&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
 &lt;artifactId&gt;slf4j-simple&lt;/artifactId&gt;
 &lt;version&gt;1.8.0-beta2&lt;/version&gt;
 &lt;/dependency&gt;

 &lt;dependency&gt;
 &lt;groupId&gt;ch.qos.logback&lt;/groupId&gt;
 &lt;artifactId&gt;logback-classic&lt;/artifactId&gt;
 &lt;version&gt;1.1.5&lt;/version&gt;
 &lt;/dependency&gt;
 &lt;!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
 &lt;version&gt;1.18.12&lt;/version&gt;
 &lt;type&gt;jar&lt;/type&gt;
 &lt;/dependency&gt;
 &lt;!-- endregion --&gt;
</code></pre>
This assuming you have the <a href="https://stackoverflow.com/a/46934215/3061686">plugin</a> working and the <code>&quot;Enable Annotation Processing&quot;</code> checkbox activated in:
Settings[Ctrl+Alt+S] &gt; Build, Execution, Deployment &gt; Compiler &gt; Annotation Processors

I have a maven project that builds with no problems from the command line. However, when I build it with IntelliJ, I get the error:

<pre><code>java: FileName.java:89: cannot find symbol
symbol : variable log
</code></pre>

There is no log defined or imported in the java file, but there is a

<pre><code>@Slf4j
final public class FileName {
</code></pre>

statement before the class body which should define the log class.

In the project structure window, classes for:

<pre><code>Maven: org.slf4j:jcl-over-slf4j:1.6.1
Maven: org.slf4j:slf4j-api:1.6.6
Maven: org.slf4j:slf4j-log4j12:1.6.6
Maven: org.slf4j:slf4j-simple:1.6.6
</code></pre>

are listed under libraries and are indicated as having been downloaded and available.

Any idea why this would build with maven through the command line, but not through IntelliJ and how to resolve the issue?

Building with Lombok's @Slf4j and Intellij: Cannot find symbol log

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个maven项目，可以从命令行构建，没有任何问题。但是，当我使用IntelliJ构建它时，我得到了错误：java: FileName.java:89: cannot find symbolsymbol  : variable log在java文件中没有定义或导入日志，但存在@Slf4jfinal public c...

问使用Lombok的@Slf4j和Intellij生成:找不到符号日志
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