blocks|key|2452784|text|您正在使用maven项目，删除.m2文件夹，更新maven项目，并清理该项目，重新构建它并运行它.有一段时间，maven项目会出现这种类型的问题，通过重新构建项目来解决。还可以检查依赖关系的版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2452785|entityMap^0|F|3|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

you are using maven project, delete <code>.m2</code> folder and update maven project and clean the project the rebuild it and run it... some time maven project occur that type of issue, which resolve by rebuilding the project. also check the version of your dependency.

blocks|key|2415062|text|答案是逐行查看pom.xml文件，并查看我没有的依赖项。我以为这是配置问题，但事实并非如此。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2415063|我没有注意到我没有lombok插件，它是我的项目的依赖项。|2415064|EDIT2中列出的问题实际上不是一个问题，因为所有的类都是可用的。|offset|length|style|BOLD|2415065|entityMap^0|0|0|0|5|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@$F|O|G|P|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

The answer was the look through the pom.xml file line by line, and see what the dependencies were that I didn't have. I thought it was a configuration issue, but it wasn't.

I didn't notice that I didn't have the lombok plugin, which was a dependency for my project.

The problem listed in EDIT2 wasn't actually an issue since all of the classes were available.

blocks|key|2415095|text|因为您的项目使用mvn+clean+install成功编译和运行，所以您知道pom是有效的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2415096|有鉴于此，我建议：|2415097|CloseIntelliJ|ordered-list-item|2415098|删除.idea目录和每个模块的任何*.iml,+*.ipr文件。别担心，IntelliJ会重新创建它们的。如果你真的担心的话，用重命名来支持他们。|2415099|打开IntelliJ并找到新的项目向导。|2415100|查找从现有maven项目导入的选项|2415101|为根项目选择pom|2415102|entityMap^0|8|H|0|0|0|2|5|H|C|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$]]|$1|K|3|L|5|J|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|M|3|N|5|J|7|14|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|15|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|16|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|T|$]]

Since your project compiles and runs successfully with <code>mvn clean install</code>, you know your pom is valid. 

Given that, I would recommend to: 

<ol>
<li>CloseIntelliJ</li>
<li>delete the <code>.idea</code> directory and any <code>*.iml, *.ipr</code> files for each of your modules. Don't worry, IntelliJ will re-create them. Back them up by renaming them if you're really concerned. </li>
<li>Open IntelliJ and find the new project wizard. </li>
<li>Find the option to import from an existing maven project </li>
<li>Select the pom for your root project</li>
</ol>

blocks|key|1123320|text|这太奇怪了。我也面临同样的问题，在堆栈溢出和其他论坛上查看了所有的问题，并在一定程度上应用了所有的建议来重新安装intelliJ。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1123321|不过，在我的例子中，问题在于我排除了一些文件，即.gradle和build文件夹，这听起来确实很重要。我一定是这样做的，git状态通知被排除在外，但是不知怎么的，我已经将它排除在我的项目之外，因为我是intellij的新手。要检查您的文件夹是否被排除在外，请检查->模块CTRL+%2B+Shift+%2BAlt+%2Bs，并检查是否有任何红色项，您可能应该在这里包含必要的项。|1123322|希望这能帮上几个忙。|1123323|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

This is a weird one. I faced the same issue and went through all questions on stackoverflow and other forums and applied all suggestion to an extent to reinstalling intelliJ. 

Though what problem in my case was that i had excluded some files namely .gradle and build folder, which definitely sounds important. I must have done this get excluded for git status notifs but somehow i had excluded it from my project as i am new to intellij. To check if any of your folders are exclude goto -> modules CTRL + Shift +Alt + s and check for any red items you should probably include the ones necessary here. 

Hope this helps few of those out there.

IntelliJ IDEA 2017.2

I know this has been asked, but I have tried every fix I could find, as shown below.

Every symbol in my java code has an error <code>Cannot resolve method</code>, or <code>Cannot resolve symbol</code>. However, the code still compiles and runs with 0 errors. The error messages in the IDE started the first time I opened the project, on 3 separate computers, but runs fine on a fourth....I can't find anything different on that fourth computer.

I have following the following instructions from <a href="https://stackoverflow.com/questions/5905896/intellij-inspection-gives-cannot-resolve-symbol-but-still-compiles-code">this issue</a>:

<pre><code>File -&gt; Invalidate Caches / Restart

I deleted the [IDEA system](https://intellij-support.jetbrains.com/hc/en-us/articles/206544519-Directories-used-by-the-IDE-to-store-settings-caches-plugins-and-logs) directories, and re-imported the Maven project.

I have re-imported the Maven project

I re-imported the project with auto-import
</code></pre>

I also followed the instructions from <a href="https://stackoverflow.com/questions/11632120/why-so-red-intellij-seems-to-think-every-declaration-method-cannot-be-found-res">this issue</a>:

<pre><code>File -&gt; Synchronize
</code></pre>

then

<pre><code>File -&gt; Invalidate Caches / Restart
</code></pre>

As well as the solutions <a href="https://stackoverflow.com/questions/26952078/intellij-cannot-resolve-symbol-on-import">here</a>:

Check source roots

<pre><code>Ctrl+Alt+Shift+S
</code></pre>

There were no errors or fixes in the Module source roots, or the module dependencies. 

I also tried re-importing with "Search for projects recursively" checked as recommended <a href="https://intellij-support.jetbrains.com/hc/en-us/community/posts/207108385-IntelliJ-not-able-to-resolve-classes-of-external-Libraries-for-Maven-projects" rel="nofollow noreferrer">here</a>.

<hr>

Edit1

This isn't a screenshot from my actual code, but my errors look the same as the screenshots from <a href="https://intellij-support.jetbrains.com/hc/en-us/community/posts/207108385-IntelliJ-not-able-to-resolve-classes-of-external-Libraries-for-Maven-projects" rel="nofollow noreferrer">this post</a>.

<a href="https://i.stack.imgur.com/IjR4Q.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IjR4Q.jpg" alt="enter image description here"></a>

EDIT2

I just found an error I hadn't seen before. When I go to Project Structure (Ctrl+Alt+Shift+S), under Libraries, I see the following errors.

<a href="https://i.stack.imgur.com/pCG29.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pCG29.png" alt="enter image description here"></a>

I checked on the location shown <code>/home/user/.m2/repository/antlr/antlr/2.7.7/antlr-2.7.7-sources.jar</code> and it doesn't exist. I have <code>antlr-2.7.7.jar</code>, but I'm not sure if I need to download the antlr-2.7.7.7-sources.jar, or just point my Library to the .jar I have (as I'm unfamiliar what these settings do)

IntelliJ cannot resolve any symbols or methods

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。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

IntelliJ IDEA 2017.2我知道有人问过这个问题，但我已经尝试了我能找到的每一个修复方法，如下所示。我的java代码中的每个符号都有一个错误Cannot resolve method或Cannot resolve symbol。但是，代码仍然编译并运行0错误。IDE中的错误消息在我第一次在3台不同的计算机...

问IntelliJ无法解析任何符号或方法。
EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问IntelliJ无法解析任何符号或方法。EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问IntelliJ无法解析任何符号或方法。
EN