blocks|key|4353164|text|从支持库的版本26开始，请确保repositories部分包含一个带有"https://maven.google.com“端点的maven部分。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4353165|就像这样；|4353166|allprojects+{
++++repositories+{
++++++++jcenter()
++++++++maven+{
++++++++++++url+"https://maven.google.com"
++++++++}
++++}
}|code-block|syntax|javascript|4353167|entityMap|0|LINK|mutability|MUTABLE|url|https://maven.google.com/^0|F|C|10|O|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|11|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Starting from version 26 of support libraries make sure that the <code>repositories</code> section includes a maven section with the "<a href="https://maven.google.com" rel="noreferrer">https://maven.google.com</a>" endpoint.

Something like;

<pre><code>allprojects {
 repositories {
 jcenter()
 maven {
 url "https://maven.google.com"
 }
 }
}
</code></pre>

blocks|key|4353362|text|只需将此代码添加到all+project+()下的所有项目级别的主build.gradle文件中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353363|+maven+{
++++url+"https://maven.google.com"
+}|code-block|syntax|javascript|4353364|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|$]]

Just add this to your main all project level build.gradle file under allprojects() 

<pre><code> maven {
 url "https://maven.google.com"
 }
</code></pre>

blocks|key|4352852|text|当我更新我的SDK和Android+studio版本(3.0测试版)时，我也遇到了同样的问题。我已经通过this+tutorial.解决了这个问题，他们告诉我们要更新构建配置文件，如下所示|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4352853|android+{
+++compileSdkVersion+26
+++buildToolsVersion+'26.0.0'
+++defaultConfig+{
+++targetSdkVersion+26
++}
++...
}

dependencies+{
+++compile+'com.android.support:appcompat-v7:26.0.0'
}

//+REQUIRED:+Google's+new+Maven+repo+is+required+for+the+latest
//+support+library+that+is+compatible+with+Android+8.0
repositories+{
+++maven+{
+++++++url+'https://maven.google.com'
+++++++//+Alternative+URL+is+'https://dl.google.com/dl/android/maven2/'
+++}
}|code-block|syntax|javascript|4352854|希望它能帮到你。|4352855|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/about/versions/oreo/android-8.0-migration.html#ptb^0|1G|E|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

I face the same problem while I have updated my SDK and Android studio version(3.0 beta). I have solved this problem going through <a href="https://developer.android.com/about/versions/oreo/android-8.0-migration.html#ptb" rel="noreferrer">this tutorial.</a> In this they told us to update are build configuration file like

<pre><code>android {
 compileSdkVersion 26
 buildToolsVersion '26.0.0'
 defaultConfig {
 targetSdkVersion 26
 }
 ...
}

dependencies {
 compile 'com.android.support:appcompat-v7:26.0.0'
}

// REQUIRED: Google's new Maven repo is required for the latest
// support library that is compatible with Android 8.0
repositories {
 maven {
 url 'https://maven.google.com'
 // Alternative URL is 'https://dl.google.com/dl/android/maven2/'
 }
}
</code></pre>

Hope it will help you out.

blocks|key|4352788|text|在可能的情况下，我发现OneSignal更改了它们的依赖性|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4352789|所以我把它从|4352790|compile+'com.onesignal:OneSignal:[3.5.8,+3.99.99]'|offset|length|style|CODE|4352791|至|4352792|compile+'com.onesignal:OneSignal:[3.5.8,+3.5.8]'|4352793|然后它就可以工作了，请检查任何未指定的依赖项。|4352794|entityMap^0|0|0|0|1E|0|0|0|1C|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@$F|U|G|V|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|10|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|Q|$]]

in may case I found OneSignal changed their dependencies 

so I changed it from 

<code>compile 'com.onesignal:OneSignal:[3.5.8, 3.99.99]'</code>

to 

<code>compile 'com.onesignal:OneSignal:[3.5.8, 3.5.8]'</code>

then it works, please check any unspecific dependency.

blocks|key|4352827|text|将此代码添加到项目级别的build.gradle文件中，它应该可以正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4352828|allprojects+{
++++repositories+{
++++++++google()+//+this+is+to+be+added+if+there's+something+already.
++++++++jcenter()
++++}
}|code-block|syntax|javascript|4352829|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|$]]

Add this to the project level build.gradle file and it should work fine.

<pre><code>allprojects {
 repositories {
 google() // this is to be added if there's something already.
 jcenter()
 }
}
</code></pre>

blocks|key|4353337|text|与Android8.0兼容的最新支持库需要Google的新Maven+repo。只需更新您的Google+Maven存储库，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353338|要将它们添加到构建中，请将maven.google.com添加到模块级build.gradle文件中的Maven存储库中：|offset|length|style|CODE|4353339|repositories+{
++++maven+{
++++++++url+'https://maven.google.com'
++++++++//+Alternative+URL+is+'https://dl.google.com/dl/android/maven2/'
++++}
}|code-block|syntax|javascript|4353340|或者，您可以像这样更新build.gradle文件：|4353341|++++repositories+{
++++++++jcenter()
++++++++google()
++++}|4353342|然后将所需的库添加到依赖项块中。例如，cardview库如下所示：|4353343|dependencies+{
++++compile+'com.android.support:cardview-v7:26.1.0'
}|4353344|entityMap^0|0|D|G|Z|C|0|0|B|C|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]|$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|13|8|@$D|14|E|15|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|17|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|U|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|V|$]]

Google's new Maven repo is required for the latest support library that is compatible with Android 8.0.
Just update your Google's Maven repository like below:

To add them to your build, add <code>maven.google.com</code> to the Maven repositories in your module-level <code>build.gradle</code> file:

<pre><code>repositories {
 maven {
 url 'https://maven.google.com'
 // Alternative URL is 'https://dl.google.com/dl/android/maven2/'
 }
}
</code></pre>

Alternative you can update <code>build.gradle</code> file like this:

<pre><code> repositories {
 jcenter()
 google()
 }
</code></pre>

Then add the desired library to your dependencies block. For example, the cardview library looks like this:

<pre><code>dependencies {
 compile 'com.android.support:cardview-v7:26.1.0'
}
</code></pre>

blocks|key|4353629|text|在sdk+28中你可以使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353630|implementation+'com.android.support:design:28.0.0'|code-block|syntax|javascript|4353631|并删除cardView库|4353632|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|$]]

in sdk 28
u can use

<pre><code>implementation 'com.android.support:design:28.0.0'
</code></pre>

and remove cardView library

blocks|key|4353118|text|从sdk管理器更新您的Android支持存储库。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353119|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|$]]

Update your Android Support Repository from sdk manager.

blocks|key|4353286|text|只需将build-version从compile+'com.android.support:appcompat-v7:26.0.0‘改为|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353287|至|4353288|编译'com.android.support:appcompat-v7:26.0.0-alpha1‘|4353289|这将解决您的问题。|4353290|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Simply change the build-version from
 compile 'com.android.support:appcompat-v7:26.0.0'

to

compile 'com.android.support:appcompat-v7:26.0.0-alpha1'

This will solve your problem.

blocks|key|4352708|text|尝试编译|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4352709|+compile+'com.android.support:cardview-v7:25.3.1'|code-block|syntax|javascript|4352710|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|$]]

try to compile

<pre><code> compile 'com.android.support:cardview-v7:25.3.1'
</code></pre>

blocks|key|4352866|text|从终端清理gradle|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4352867|./gradlew+clean|code-block|syntax|javascript|4352868|然后在你的build.gradle部分使用下面的代码|4352869|allprojects+{
++++repositories+{
++++++++jcenter()
++++++++maven+{
++++++++++++url+"https://maven.google.com"
++++++++}
++++}
}|4352870|确保您包含的库版本可用。为了便于检查，您可以使用此link|offset|length|4352871|entityMap|0|LINK|mutability|MUTABLE|url|http://gradleplease.appspot.com/^0|0|0|0|0|P|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

Clean your gradle from terminal

<pre><code>./gradlew clean
</code></pre>

then use this code in your build.gradle section 

<pre><code>allprojects {
 repositories {
 jcenter()
 maven {
 url "https://maven.google.com"
 }
 }
}
</code></pre>

Make sure, your included library version is available. For your checking, you can use this <a href="http://gradleplease.appspot.com/" rel="nofollow noreferrer">link</a>

blocks|key|4353694|text|在Android+Studio中使用Kotlin创建新项目时，我遇到了这个问题。最终帮助我的方法是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353695|allprojects+{
++++repositories+{
++++++++maven+{
++++++++++++url+"https://maven.google.com"
++++++++}
++++++++google()
++++++++jcenter()
++++}
}|code-block|syntax|javascript|4353696|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|$]]

I had this issue when creating a new project in Android Studio using Kotlin. The way that finally helped me:

<pre><code>allprojects {
 repositories {
 maven {
 url "https://maven.google.com"
 }
 google()
 jcenter()
 }
}
</code></pre>

blocks|key|4353739|text|Ionic+4，打开/platforms/android/platform.properties，将列出的库的版本更改为抛出错误(在我的例子中是com.android.support:support-v4:27.%2B)为：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4353740|com.android.support:support-v4:28.%2B|code-block|syntax|javascript|4353741|entityMap^0|A|12|20|Z|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Ionic 4, opened <code>/platforms/android/platform.properties</code>, changed the version of the listed library throwing the error (in my case, <code>com.android.support:support-v4:27.+</code>) to:

<pre><code>com.android.support:support-v4:28.+
</code></pre>

blocks|key|4352744|text|使用compile+'com.android.support:cardview-v7:25.4.0'|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4352745|如果你想要版本26，你应该使用compile+'com.android.support:cardview-v7:26.0.0-beta2'，因为它现在是测试版|4352746|entityMap^0|2|1C|0|F|1I|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

Use <code>compile 'com.android.support:cardview-v7:25.4.0'</code> 
If you want version 26 you should use <code>compile 'com.android.support:cardview-v7:26.0.0-beta2'</code>, because it is beta for now

blocks|key|4352981|text|android+{
+++++compileSdkVersion+26
+++++buildToolsVersion+'26.0.2'
+++++useLibrary+'org.apache.http.legacy'
+defaultConfig+{
++++applicationId+"com.test"
++++minSdkVersion+15
++++targetSdkVersion+26
++++versionCode+1
++++versionName+"1.0"
++++testInstrumentationRunner+"android.support.test.runner.AndroidJUnitRunner"
++++multiDexEnabled+true
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4352982|这对我很有效|unstyled|4352983|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>android {
 compileSdkVersion 26
 buildToolsVersion '26.0.2'
 useLibrary 'org.apache.http.legacy'
 defaultConfig {
 applicationId "com.test"
 minSdkVersion 15
 targetSdkVersion 26
 versionCode 1
 versionName "1.0"
 testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 multiDexEnabled true
}
</code></pre>

this is working for me

blocks|key|4353406|text|compile+'com.android.support:cardview-v7:%2B'+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4353407|这应该会拉出最新的版本，并允许它编译。|unstyled|4353408|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>compile 'com.android.support:cardview-v7:+' 
</code></pre>

This should pull the most recent version, and allow it to compile.

blocks|key|4353049|text|可能这个问题是由于facebook库造成的。替换|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353050|compile+'com.facebook.android:facebook-android-sdk:[4,5)'|code-block|syntax|javascript|4353051|通过|4353052|compile+'com.facebook.android:facebook-android-sdk:4.26.0'|4353053|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]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

May be this problem is due to facebook library. 
Replace 

<pre><code>compile 'com.facebook.android:facebook-android-sdk:[4,5)'
</code></pre>

by 

<pre><code>compile 'com.facebook.android:facebook-android-sdk:4.26.0'
</code></pre>

blocks|key|4353510|text|@雅利安是正确的Failed+to+resolve:+com.android.support:appcompat-v7:27.%2B+(Dependency+Error)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4353511|千言万语的图画|4353512|​|4353513|📷|atomic|4353514|4353515|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/47164768/failed-to-resolve-com-android-supportappcompat-v727-dependency-error|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/1c8ff6643bfe65fb75d355a6e594c423.png|imageAlt^0|8|23|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|K|3|G|5|6|7|19|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]|T|$5|U|P|V|C|$W|X|Y|-4]]]]

@Aryan is correct <a href="https://stackoverflow.com/questions/47164768/failed-to-resolve-com-android-supportappcompat-v727-dependency-error">Failed to resolve: com.android.support:appcompat-v7:27.+ (Dependency Error)</a>

A picture worth thousand words

<a href="https://i.stack.imgur.com/yLz0S.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yLz0S.png" alt="enter image description here"></a>

blocks|key|4353560|text|对我来说，我只需要清理我的项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353561|构建->清理项目|4353562|另一次我不得不：|4353563|文件->与Gradle文件同步项目。|4353564|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

For me I just had to clean my project.

Build -> Clean Project

Another time I had to:

File -> Sync Project with Gradle Files.

blocks|key|4353253|text|修复此问题的2个步骤..1、连接到互联网。2+.点击clean+project。这将修复它:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4353254|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|$]]

2 Steps to fix this..
1, connect to internet.
2, Click on clean project. this will fix it 
:)

i try to add recyclerview to my project and get this error appear and i added it from android studio dependencies
<a href="https://i.stack.imgur.com/IFo2O.png" rel="noreferrer"><img src="https://i.stack.imgur.com/IFo2O.png" alt="this is error appear when try to add recyclerview in android studio"></a>

<a href="https://i.stack.imgur.com/HkM5Q.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HkM5Q.png" alt="this is the compiled version ..."></a>

Failed to resolve: com.android.support:cardview-v7:26.0.0 android

我尝试在我的项目中添加recyclerview，并显示此错误，然后我从android studio依赖项中添加了它​​​

问解析失败: com.android.support:cardview-v7:26.0.0 android
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问解析失败: com.android.support:cardview-v7:26.0.0 androidEN

回答 20

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问解析失败: com.android.support:cardview-v7:26.0.0 android
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