blocks|key|3643352|text|我也面临着同样的问题，经过几天的麻烦，我想出了办法。只需检查是否安装了Java|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3643353|打开终端窗口并键入：|unordered-list-item|3643354|3643355|3643356|java+-version|offset|length|style|BOLD|3643357|任何高于JDK+6的版本都可以。|3643358|终端型|3643359|3643360|3643361|open+-a+TextEdit+~/..bash_profile|3643362|复制并粘贴以下行到textedit中|3643363|3643364|3643365|导出JAVA_HOME=$(/usr/libexec/java_home)|3643366|导出JDK_HOME=$(/usr/libexec/java_home)|3643367|保存它，关闭编辑器并键入以下内容以应用更改|3643368|3643369|3643370|源~/..bash_profile|3643371|现在尝试gradle同步，您必须能够完成同步|3643372|entityMap^0|0|0|0|0|0|D|0|0|0|0|0|0|X|0|0|0|0|0|0|0|0|0|0|H|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1D|8|@]|9|@]|A|$]]|$1|E|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|1G|8|@$I|1H|J|1I|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1J|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1K|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1N|8|@$I|1O|J|1P|K|L]]|9|@]|A|$]]|$1|U|3|V|5|D|7|1Q|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1T|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1U|8|@]|9|@]|A|$]]|$1|12|3|13|5|D|7|1V|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|1Y|8|@$I|1Z|J|20|K|L]]|9|@]|A|$]]|$1|18|3|19|5|6|7|21|8|@]|9|@]|A|$]]|$1|1A|3|-4|5|6|7|22|8|@]|9|@]|A|$]]]|1B|$]]

I too faced the same issue and after days of trouble I figured it out. Just check if Java is installed

<ul>
<li>Open a Terminal window and type:</li>
</ul>

java -version

Any version above JDK 6 is OK

<ul>
<li>In terminal type</li>
</ul>

open -a TextEdit ~/.bash_profile 

<ul>
<li>Copy and paste the following lines of into textedit</li>
</ul>

export JAVA_HOME=$(/usr/libexec/java_home)

export JDK_HOME=$(/usr/libexec/java_home)

<ul>
<li>Save it, close editor and type the following to apply changes</li>
</ul>

source ~/.bash_profile

Now try gradle sync now, you must be able to complete sync

blocks|key|3643423|text|最简单的解决办法(至少对我来说)是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3643424|转到SDK管理器(具有管理员权限)，向下滚动到末尾，下载"Android支持库“。|3643425|它起作用了(别忘了管理员的权利)。|3643426|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|$]]

The most simple solution (at least for me) would be:

Go to SDK manager (with Administrator rights), scroll down till the end, download "Android Support Library".

And it works (don't forget Administrator rights).

blocks|key|3255408|text|取消选中File>Settings>Gradle>Global级设置中的“脱机工作”|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|3255409|重新同步该项目，例如通过重新启动Android。|3255410|同步后，您可以再次检查该选项以脱机工作。|3255411|如果安装了Android，就更新java|3255412|unstyled|3255413|3255414|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|P|8|@]|9|@]|A|$]]|$1|H|3|-4|5|I|7|Q|8|@]|9|@]|A|$]]|$1|J|3|-4|5|I|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|I|7|S|8|@]|9|@]|A|$]]]|L|$]]

<ol>
<li>Uncheck "Offline work" in File>Settings>Gradle>Global Gradle Settings</li>
<li>Resync the project, for example by restarting the Android Studio.</li>
<li>Once synced, you can check the option again to work offline</li>
<li>Update java if Android L SDK installed</li>
</ol>

blocks|key|3255532|text|对我来说，更改JDK路径是有效的。我把它改成了/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3255533|>ProjecStructure>+JDK位置。|3255534|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|$]]

For me Changing the JDK path worked. I changed it to 
/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home

in File--> ProjecStructure-> JDK location.

blocks|key|3643511|text|打开文件中的分级设置>设置>分级|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|3643512|选择“使用本地分级分发”选项|3643513|在这里输入本地分级版本的URL。|3643514|unstyled|3643515|3643516|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|M|8|@]|9|@]|A|$]]|$1|F|3|-4|5|G|7|N|8|@]|9|@]|A|$]]|$1|H|3|-4|5|G|7|O|8|@]|9|@]|A|$]]|$1|I|3|-4|5|G|7|P|8|@]|9|@]|A|$]]]|J|$]]

<ol>
<li>Open Gradle Settings in File > Settings > Gradle </li>
<li>Select the Option 'Use local gradle distribution'</li>
<li>Enter the URL of your local gradle version here.</li>
</ol>

blocks|key|2954454|text|在MacOSX塞拉利昂上安装Android时，我收到一个错误，即我的JVM无效。因此，我来到here的另一篇文章，并安装了苹果的遗留版本和最新版本。啊，真灵。然后，当我创建一个项目时，我遇到了另一个错误，即Gradle同步问题。再次来到这里(这是由“Mac”发布的)，并更改了Android所指向的JDK版本(显然，我选择了“检测”，而不是浏览最新版本)。现在一切都很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2954455|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/27369269/android-studio-was-unable-to-find-a-valid-jvm-related-to-mac-os^0|1A|4|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]]]]

When installing Android Studio on Mac OSX Sierra, I received an error that my JVM is not valid. So I came <a href="https://stackoverflow.com/questions/27369269/android-studio-was-unable-to-find-a-valid-jvm-related-to-mac-os">here</a> to a different post and installed Apple's legacy version and the up-to-date version. It worked. Then when I was creating a project I ran into another error which was the Gradle sync issue. Came here (this very post by "Mac") again and changed the JDK version that Android Studio was pointing to (obviously I chose to "detect" instead of browsing for the up-to-date version). Everything is working fine now.

blocks|key|2954326|text|补充igor的anwswer:对我来说，“安卓支持库”是不够的，你可能也想添加“安卓支持库”。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2954327|正如他所说：|2954328|(不要忘记管理员的权利;)|blockquote|2954329|2954330|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/2591090/igor^0|2|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@]|C|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]]]

A complement to <a href="https://stackoverflow.com/users/2591090/igor">igor</a>'s anwswer: for me "Android Support Library" wasn't enough. You would probably like to add "Android Support Repository" also.

As he said:

<blockquote>
 don't forget Administrator rights ;)
</blockquote>

blocks|key|3643474|text|我的工作是在"Macintosh_HD>System>Library>Java>等“中寻找Java。但我最近的更新是在"Macintosh_HD>Library>Java等“中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3643475|我在错误窗口中单击'open+SDK‘'open+file’后设置了这个选项，这将您带到设置Java路径的屏幕上。|3643476|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|$]]

Mine was looking for the Java SDK in
"Macintosh_HD>System>Library>Java> etc." but my most recent update was in
"Macintosh_HD>Library>Java etc." 

I set this after clicking in the error window saying 'open SDK' 'open file' which brings you to the screen where to set the path for Java.

blocks|key|2954384|text|当我尝试导入错误的存储库complie+'me.dm7.barcodescanner:zxing:1.7.2'时，就会发生这种情况，所以任何一个人都可能面临这个问题，这就是原因所在。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2954385|dependencies+{
++++compile+fileTree(dir:+'libs',+include:+['*.jar'])
++++compile+'com.android.support:appcompat-v7:22.1.1'

}+|code-block|syntax|javascript|2954386|entityMap^0|C|17|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

this happen with me when I try import wrong repository
 <code>complie 'me.dm7.barcodescanner:zxing:1.7.2'</code> , so any one face this problem may be that be the reason 

<pre><code>dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 compile 'com.android.support:appcompat-v7:22.1.1'

} 
</code></pre>

blocks|key|3255578|text|最简单的解决办法(至少对我来说)是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3255579|转到SDK管理器(具有管理员权限)，向下滚动到末尾，下载"Android支持库“。|3255580|它起作用了(别忘了管理员的权利)。|3255581|我正在使用的7工作正常，谢谢igor|offset|length|style|BOLD|3255582|entityMap^0|0|0|0|6|C|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|P|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Q|8|@$H|R|I|S|J|K]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

The most simple solution (at least for me) would be:

Go to SDK manager (with Administrator rights), scroll down till the end, download "Android Support Library".

And it works (don't forget Administrator rights).

I am using windows 7 works properly
thanks igor

In hindsight I should not have enabled L build stuff.

I am new to programming and I created a new Android Studio project which is throwing the Gradle errror right away.

Errors are:

yellow bar at the top - Gradle project sync failed. Basic functionality (e.g. editing, debugging) will not work properly. Try again Open Event Log Show Log in Finder

messages gradle sync - compileSdkVersion android-L requires compiling with JDK-7. open sdk settings, open file.

tried looking through google and other stack overflow comments but did not find much I could make sense of except for <a href="https://stackoverflow.com/questions/22148584/android-studio-gradle-sync-project-failed">Android Studio - Gradle sync project failed</a> 

tried converting URL to 1.10 instead of 1.12 and syncing but that failed after syncing

I need help either getting L working or removing it so that a new studio project can compile to device without errors.

Android Studio 0.8.2 - Gradle project sync failed

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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事后看来，我不应该启用L构建的东西。我对编程很陌生，我创建了一个新的Android项目，它马上就抛出了Gradle错误。错误是：顶级项目同步中的黄色栏失败。基本功能(例如编辑、调试)不能正常工作。重试打开事件日志显示在查找程序中的日志messages gradle sync - compileSdkVersion android需要用JDK-7编译。打开sdk设置，打开文件。试着查看google和

问Android 0.8.2 -分级项目同步失败
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