blocks|key|5345266|text|我在Android+studio+4.2+canary中遇到了这个问题，我不得不删除那些生成的文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5345267|.idea/gradle.xml
.idea/workspace.xml|code-block|syntax|javascript|5345268|然后单击“重试”以同步项目。|5345269|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|$]]

I got this issue in Android studio 4.2 canary, and I had to delete those generated files:
<pre><code>.idea/gradle.xml
.idea/workspace.xml
</code></pre>
then clicking try again to sync the project.

blocks|key|5344943|text|在Android+Studio下，选择File+>+Project+Structure+>+JDK+location。将JDK指定到当前安装的JDK所在的文件夹。并指定SDK的位置。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5344944|entityMap^0|J|13|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|$]]

Under Android Studio, select <code>File &gt; Project Structure &gt; JDK location</code>.
Specify the JDK to the folder of your currently installed JDK. And specify the SDK location as well.

blocks|key|5345091|text|简单的解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5345092|5345093|转到build.gradle，顶部将显示一条消息JDK+missing|ordered-list-item|5345094|单击它并从列表中使用JDK+(如果没有)|5345095|同步项目|5345096|5345097|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|N|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|P|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|Q|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|L|$]]

Simple solution:
<ol>
<li>Go to build.gradle and at the top there will be a message JDK missing</li>
<li>Click on it and use JDK from the list (or download one if you don't have)</li>
<li>Sync project</li>
</ol>

blocks|key|3927806|text|我在Android+Studio+4.2.2中遇到了这个问题，解决方案非常简单，只需删除|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3927807|.idea/gradle.xml
.idea/workspace.xml|code-block|syntax|javascript|3927808|然后单击|3927809|File+->+Invalidate+Caches/+Restart|3927810|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|$]]

I got this issue in Android Studio 4.2.2, and the solution is very simple, just delete
<pre><code>.idea/gradle.xml
.idea/workspace.xml
</code></pre>
and click on
<pre><code>File -&gt; Invalidate Caches/ Restart
</code></pre>

blocks|key|1530817|text|如果您愿意/需要的话，请将JDK安装更新到您想要使用的版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1530818|接下来，通过运行javac+-version或java+-version查找当前安装的JDK的版本。检查它是否为您所期望的。|offset|length|style|CODE|1530819|接下来，找到JDK安装目录：|1530820|Java默认情况下，它将是"C:\Program+Files\Java\jdk1.8.0_45"+\“‘的子目录，例如："C:\Program+|1530821|”。|unordered-list-item|1530822|默认情况下，它将是“C：\Program|1530823|\|1530824|”的子目录|1530825|接下来，启动Android+Studio，进入"File->Project+Structure->JDK+Location“首选项页面。|1530826|首选项给出的文件路径应该是您在上面标识的JDK安装指挥交换机的路径。如果不是，那么更新它。|1530827|备注：|1530828|1530829|使用安装目录的完整路径名；例如"C:\Program+Files\Java\jdk1.8.0_45".|1530830|Use+a+pathname，而不是URL。|1530831|1530832|entityMap^0|0|8|E|N|D|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@$D|1A|E|1B|F|G]|$D|1C|E|1D|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1E|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1F|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1G|8|@]|9|@]|A|$]]|$1|O|3|P|5|N|7|1H|8|@]|9|@]|A|$]]|$1|Q|3|R|5|N|7|1I|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1J|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1K|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1L|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1M|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|11|3|12|5|N|7|1O|8|@]|9|@]|A|$]]|$1|13|3|14|5|N|7|1P|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|17|$]]

If you want / need to, update your JDK installation to the version that you want to use. 

Next, find the version for your current JDK installation by running <code>javac -version</code> or <code>java -version</code>. Check that it is what you expect. 

Next, find the JDK installation directory:

<ul>
<li>It should be on your %PATH%.</li>
<li>By default it will be a subdirectory of "C:\Program Files\Java"' for example: "C:\Program Files\Java\jdk1.8.0_45"</li>
</ul>

Next, start Android Studio, and go to the "File->Project Structure->JDK Location" preference page.

The file path given by the preference should be the path to the JDK installation director that you identified above. If it isn't then update it.

Notes: 

<ul>
<li>Use the full pathname of the installation directory; e.g. "C:\Program Files\Java\jdk1.8.0_45".</li>
<li>Use a pathname, not a URL.</li>
</ul>

blocks|key|1531126|text|如果您更改工作区或手动将文件复制到新的存储库工作区，则会发生此问题。我删除了下面的文件修复了这个问题，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531127|.idea/gradle.xml
.idea/workspace.xml|code-block|syntax|javascript|1531128|最后，单击文件->无效缓存并重新启动|1531129|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|$]]

This issue happens if you change the workspace or manually copy files to the new repo workspace. i fixed it by deleting below files,
<pre><code>.idea/gradle.xml
.idea/workspace.xml
</code></pre>
Finally click on File-&gt; invalidate cache and restart

blocks|key|1817498|text|对于Android+studio+金丝雀构建北极狐2020.3.1来说，这似乎是JDK11的一个错误或严重依赖。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1817499|我已经定义了jdk，但是我仍然得到这个错误。在安装jdk+11并在此处的jdk位置提供它的路径后得到了解决|1817500|File+>+Project+Structure+>+JDK+location|code-block|syntax|javascript|1817501|entityMap^0|H|G|14|5|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

For Android studio Canary Build Arctic Fox 2020.3.1 this seems like a bug or hard dependency with Jdk 11.
I already had jdk defined, but I was still getting this error. Got resolved after installing jdk 11 and providing path to it in the jdk location here
<pre><code>File &gt; Project Structure &gt; JDK location
</code></pre>

blocks|key|1530913|text|我已经解决了这个问题，我的应用程序名为“C:\Users\amram\AndroidStudioProjects\Addvoicetomusic2”；请转到应用程序目录-Addvoicetomusic2|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1530914|然后删除.gradle和.idea文件*然后连接到internet|1530915|restart+android+|unordered-list-item|1530916|
|1530917|项目成功解决|1530918|1530919|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|P|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

I have solve this problem my App name &quot;Addvoicetomusic2&quot;;
go to app dir-
C:\Users\amram\AndroidStudioProjects\Addvoicetomusic2
<ul>
<li>then remove .gradle and .idea file
*then connect to internet</li>
<li>restart android studio project
successfully solve</li>
</ul>

blocks|key|5345299|text|只需从计算机上的项目路径中删除.idea和.gradle文件夹，然后重新同步即可。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5345300|entityMap^0|F|5|L|7|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|$]]

Just delete <code>.idea</code> and <code>.gradle</code> folders from your project path on your computer and sync again.

blocks|key|1817853|text|当您在另一台计算机上打开Android项目时，会出现此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1817854|为了解决这个问题，|1817855|从project.|1817856|Invalidate缓存中同步.gradle和.idea文件夹并重新启动+Android+studio|unordered-list-item|offset|length|style|BOLD|CODE|1817857|
|1817858|重新启动后，再次同步到创建的新.gradle和.idea文件夹<代码>H216<代码>G217|1817859|1817860|entityMap^0|0|0|0|0|10|F|7|N|5|0|0|F|7|N|5|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|X|8|@$I|Y|J|Z|K|L]|$I|10|J|11|K|M]|$I|12|J|13|K|M]]|9|@]|A|$]]|$1|N|3|O|5|6|7|14|8|@]|9|@]|A|$]]|$1|P|3|Q|5|H|7|15|8|@$I|16|J|17|K|M]|$I|18|J|19|K|M]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|T|$]]

<h2>This Problem occurs when you open your Android Project in Another Computer.</h2>
To Solve this,
<ol>
<li>DELETE your <code>.gradle</code> and <code>.idea</code> folder from your project.</li>
<li>Invalidate Cache and Restart Android studio</li>
<li>After Restart, SYNC Again to created new <code>.gradle</code> and <code>.idea</code> folders</li>
</ol>

blocks|key|1817877|text|Android+4.2.2解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1817878|终端命令：|1817879|rm+.idea/gradle.xml

rm+.idea/workspace.xml|code-block|syntax|javascript|1817880|最后，单击文件->无效缓存并重新启动|1817881|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Solution for Android 4.2.2
Terminal commands:
<pre><code>rm .idea/gradle.xml

rm .idea/workspace.xml
</code></pre>
Finally click on File-&gt; invalidate cache and restart

blocks|key|3927516|text|简单易用的方法是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3927517|3927518|转到右上角的build.gradle(模块:应用程序)，你会发现JDK丢失的通知，或者下载该通知上丢失的JDK+Clik，然后下载JDK和同步项目。|blockquote|3927519|3927520|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|J|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|K|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|L|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|M|8|@]|9|@]|A|$]]]|H|$]]

The simple and easy way is
<blockquote>
<blockquote>
Go To Your build.gradle(Module:app)
At the top right corner you will find notification JDK is missing or download missing JDK
Clik on that notification and download JDK and Sync Project.
</blockquote>
</blockquote>

blocks|key|1817718|text|SIMPLE+SOLUTION+-go+to+build.gradle，在顶部缺少JDK右侧的配置或下载选项，单击并安装JDK，然后选择已有的JDK。否则，下载更好的选项。感谢单击“立即同步”或重试。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1817719|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|$]]

SIMPLE SOLUTION
-go to build.gradle and at Top there missing JDK right side configuration or download options to click and install JDK and have a already JDK then select it. Otherwise download better option.
Thanks click sync now or try again.

blocks|key|5345398|text|对于macOS：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5345399|5345400|从Oracle+|ordered-list-item|5345401|安装JDK|5345402|5345403|转到文件夹：|5345404|5345405|cd+/Library/Java/JavaVirtualMachines|code-block|syntax|javascript|5345406|在这里，您将看到安装了JDK。|5345407|在Android+Studio中设置文件夹，如下所示：|5345408|/Library/Java/JavaVirtualMachines/jdk-16.0.1.jdk|5345409|我不明白为什么这么多年后不能自动完成这样的任务。|5345410|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|12|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|I|3|J|5|E|7|15|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|17|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|18|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|19|8|@]|9|@]|A|$]]|$1|U|3|V|5|N|7|1A|8|@]|9|@]|A|$O|P]]|$1|W|3|X|5|6|7|1B|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|Z|$]]

For macOS:
<ol>
<li>install JDK from Oracle site
</li>
<li>Go to the folder:
</li>
</ol>
<pre><code>cd /Library/Java/JavaVirtualMachines
</code></pre>
Here you will see JDK installed.
Set folder in the Android Studio, something like this:
<pre><code>/Library/Java/JavaVirtualMachines/jdk-16.0.1.jdk
</code></pre>
I don't why it's not possible to automate such tasks after all this years.

blocks|key|5345182|text|amra+ram的解决方案或多或少对我有效。我有一个旧的.idea目录，配置很奇怪。删除它，关闭Android+Studio，然后再次打开该项目，迫使它重新安装并同步Gradle。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5345183|entityMap^0|S|5|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|$]]

amra ram's solution worked for me, more or less. I had an old <code>.idea</code> directory with a weird configuration. Deleting it, closing Android Studio, and opening the project again forced it to reinstall and sync Gradle.

blocks|key|3927894|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3927895|转到build.gradle，顶部将显示一条消息JDK+missing|ordered-list-item|3927896|单击它并从列表中使用JDK+(如果没有)|3927897|同步项目|3927898|3927899|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|K|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|L|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|M|7|@]|8|@]|9|$]]|$1|F|3|G|4|C|6|N|7|@]|8|@]|9|$]]|$1|H|3|-4|4|5|6|O|7|@]|8|@]|9|$]]|$1|I|3|-4|4|5|6|P|7|@]|8|@]|9|$]]]|J|$]]

<ol>
<li>Go to build.gradle and at the top there will be a message JDK missing</li>
<li>Click on it and use JDK from the list (or download one if you don't have)</li>
<li>Sync project</li>
</ol>

blocks|key|3927390|text|当我遇到同样的问题时，我通过指定可移植(未安装)+JDK8的路径来解决它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3927391|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|$]]

When I encountered this same problem, I solved it by specifying the path to the portable (non installed) JDK8.

blocks|key|1817370|text|当我在我的pc上安装android+studio时，我也遇到了同样的错误。在安装时，我已经将android+sdk和android+studio安装在不同的路径下，因此在项目结构中，我已经设置了新的sdk路径。我仍然收到无效的jdk+...then的消息，我知道jdk的位置，同样在项目结构中，我已经设置了我的jdk+path.It工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1817371|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|$]]

Same error i got when I install android studio on my pc . at the time of installation I have installed android sdk and android studio in different path so In project structure I have set my new sdk path .
Still I got message of invalid jdk ...then I knew location of jdk ,again in project structure I have set my jdk path.It works.

blocks|key|5345073|text|对我来说，这个问题是在将IntelliJ更新到2020.2.1版本之后出现的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5345074|通过转到项目Structure+->+SDK解决了这个问题。在那里我只有Java+jdk。我已经添加了IntelliJ+IDEA平台插件SDK，这似乎解决了这个问题。gradle加载很好。|offset|length|style|BOLD|5345075|entityMap^0|0|4|B|J|3|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

For me the problem appeared after updating IntelliJ to version 2020.2.1.
Just solved it by going to Project Structure -&gt; SDK. There I only had the Java jdk. I've added IntelliJ IDEA Platform Plugin SDK and that seems to have solved the problem. gradle loads just fine.

blocks|key|1530999|text|如果其他答案不起作用，请尝试以下方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531000|为安卓工作室北极狐%7C+2020.3.1金丝雀15|offset|length|style|BOLD|1531001|File+->无效缓存/重新启动单击无效并重新启动|1531002|对我来说很管用|1531003|entityMap^0|0|1|N|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

if other answers not work try this 
For Android Studio Arctic Fox | 2020.3.1 Canary 15 
File -&gt; Invalidate Caches/Restart
click Invalidate and Restart 
it works for me

blocks|key|1817697|text|首先，您必须从源directory.|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1817698|Select+File+>+Project+Structure+>+JDK+location中删除文件夹-+.idea和.gradle。将JDK指定到当前安装的JDK所在的文件夹。确保您安装的JDK版本高于1.8。还要指定SDK+location.|unordered-list-item|offset|length|style|CODE|1817699|
|1817700|Select+File+->+Invalidate+Caches/Restart，然后单击Invalidate并重新启动|1817701|1817702|entityMap^0|0|7|13|1I|5|1O|7|0|0|7|X|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@$E|R|F|S|G|H]|$E|T|F|U|G|H]|$E|V|F|W|G|H]]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|Y|8|@$E|Z|F|10|G|H]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|O|$]]

<ul>
<li>First you have to delete the folders - <code>.idea</code> and <code>.gradle</code> from the source directory.</li>
<li>Select <code>File &gt; Project Structure &gt; JDK location</code>. Specify the JDK to the folder of your currently installed JDK. Ensure that you have installed the JDK version greater than 1.8. Also specify the SDK location.</li>
<li>Select <code>File -&gt; Invalidate Caches/Restart</code> click Invalidate and Restart</li>
</ul>

blocks|key|5345478|text|只是清理和重建项目对我很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5345479|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|$]]

Just clean and rebuild project worked for me.

blocks|key|1817893|text|我必须更新到最新的安卓版本，指定Android+Studio+Arctic+Fox+%7C+2020.3.1.才能编译项目。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1817894|entityMap^0|G|11|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|$]]

I had to update to the latest Android build, <code>Android Studio Arctic Fox | 2020.3.1.</code> to be specified to make the project compile.

I am very new in <code>Android Studio</code>. I have a problem with <code>gradle</code>.
it says, 

<pre><code>Error:Invalid Gradle JDK configuration found.
Platform SDK does not point to valid `JDK` `(C:/Program Files/Java/jdk1.8.0_20)`.
Consult IDE log for more details (Help | Show Log)
</code></pre>

then what should I do to solve that?

Invalid Gradle JDK configuration found?

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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我是Android Studio的新手。我对gradle有个问题。上面写着，Error:Invalid Gradle JDK configuration found.Platform SDK does not point to valid `JDK` `(C:/Program Files/Java/jdk1.8.0_20)`.Consult IDE log for more details (He

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