使用选项-Dosgi.locking=none启动Eclipse。

我知道窍门了，而且很管用。

不要这样做，除非您知道没有人可以同时处理同一个文件。

有时，如果你在Windows上，你可能看不到所有的进程——或者在任务管理器中看不到罪魁祸首进程。我必须点击“显示所有用户的进程”，我必须杀死这个java.exe，以便回到我的工作空间。

只需删除eclipse工作区目录中的.metadata目录中的.lock文件。

注意事项-如果你删除。metadata文件夹，所有的首选项都会被删除。

下面是解决这个问题的几个步骤。4步对我来说很有用。

Delete .log files along .metadata folder. Check the current user permission make sure to check the full control checkbox click apply then OK. If you run system drive defragmentation or maintenance before you run eclipse editor sometimes original file path are not in their respective path to make sure run "previous version" time before your system maintenance of your drive where the eclipse workbench or something similar to this was saved. This last option is works for me. Check the drive letter of your current drive where the code editor was saved. If something unusual e.g before your maintenance your drive letter is K then after defragment or maintenance. The drive letter is now L hence you should change the drive letter to its original one that is K. to do this click the ff: Open control panel System & security Administrative tools Computer management Disk management in disk mngt choose the Drive example L then right click > change drive letter & path > click remove > then ok, open it again then > click add and > choose your original drive letter for that drive then click ok. If you use your computer for a long period of time do restart first to refresh everything.

Mac用户:

可能是另一个eclipse实例正在后台运行。如果是，使用Force Quit eclipse或

ps -ef |grep eclipse
kill -9 pid

到所有eclipse实例，并启动新的工作空间

在管理员模式下运行eclipse为我解决了这个问题。您可以通过[右键单击]->在安装目录下以管理员身份运行eclipse.exe。

我在win7机器的工作环境中具有限制性权限。我还删除了.lock和.log文件，但这并没有帮助。它也可以是所有这些因素的结合。