这可能是因为Android Studio的实例不止一个。

在@Sean Stayns的回答中引用了一个场景，以防它能帮助到任何人:如果你把你的项目保存在谷歌Drive文件夹中——不要这样做。只需将项目移动到本地驱动器即可解决此问题。

In the case we were trying to solve, were were also getting the "It is currently in use by another Gradle instance" error and nothing we tried here worked. The process ID was unknown as well. It didn't immediately occur to me to ask where the project was being saved, so in case anyone new to Android Dev is saving their projects to a Google Drive folder, just move over to your local drive. I would have just left this as a comment in @Sean Stayns's answer, but I can't comment. Hopefully it benefits someone.

有时候快速的方式会带来不优雅的交易，就是这样:

首先找到所有正在运行的gradle进程的#

ps -A | grep gradle

然后，拿到身份证，一个一个杀了他们

sudo kill -9 <process ID>

现在你很好了;-)

非常简单的解决方案:

不需要杀死Android Studio，只需杀死OpenJdkPlatform进程， 然后删除下面的.lock文件:

rootProject/.gradle/<version>/taskHistory

只要删除你的。gradle文件夹在android文件夹

如果在您的文件资源管理器(WINDOWS)或查找器(MAC)中不可用

Windows操作系统: 转到查看选项并检查显示隐藏文件

对于Mac

只需按CMD + shift +。

现在运行你的应用程序。

我可能会迟到，但看起来是一个快速有效的解决方案。

请执行以下步骤。

执行ps -ef | grep gradle 打开终端，移动到~/。gradle /缓存路径 执行find ~/。Gradle -type f -name "*。读取f时锁定“|”;做rm $f;完成 删除Android studio中的。gradle和。idea文件夹。

这是完成了。