对于MAC电脑

请打开“Activity Monitor”，选择“memory”选项，强制静音Android studio和其他正在运行的java进程，就可以解决这个问题。

这些答案我都试过了，包括杀死java进程，在HOME_DIR和project dir中删除.gradle，重启Android Studio，甚至重启OS。

它开始正常工作后，我启动gradle同步。

Windows操作系统:

我认为它与一个锁文件有关，所以我只是去了项目文件夹中的.gradle\buildOutputCleanup，删除了cache.properties.lock文件并重新构建了项目。它工作得很完美。

我没有必要删除任何文件来修复这个错误。

我遇到的问题是Gradle实例挂起了，并且在我的任务列表中有6个命令提示项，这些命令提示项是由Java生成的。

强制关闭命令提示符实例允许我像往常一样继续工作。

Gradle失败消息后面通常跟着相关的进程id，所以应该是这样

Gradle sync failed: Timeout waiting to lock daemon addresses registry [...].
It is currently in use by another Gradle instance.

Owner PID: 1234
Our PID: 5678
Owner Operation: ...

为了解锁，只需杀死所有者进程:

sudo kill -9 1234

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.