删除日志和.lock不起作用，但是

-clean选项为我修复了它。

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.

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。

导致这个问题的另一个非常常见的原因是，如果您试图加载一个不再连接的驱动器上的目录。例如，假设你用C:\Code\Java编程，但偶尔在H:\Code\Java闪存驱动器上工作。如果你没有连接驱动器，很容易相信你正在尝试加载一个有效的目录，而没有注意到你的打字错误。

我观察到一个例子，当eclipse在强制退出，或Alt-f2 xkilled在linux中，尝试立即打开eclipse显示错误。甚至元数据/。锁文件在这种情况下不存在。 然而，它在大约两分钟后开始工作

还有另一种情况，工作空间的路径可能不存在，例如，如果您从另一个工作空间导入了首选项，那么一些导入的工作空间地址可能会出现在您的“开放工作空间”对话框中;然后，如果您不注意这些地址，一旦您试图打开它们，就会得到完全相同的错误。