Intellij错误：内部缓存已损坏或格式已过时 [英] Intellij Error: Internal caches are corrupted or have outdated format

问题描述

在Intellij中构建Java项目时，间歇性地出现错误。

内部缓存已损坏或格式已过时，从而迫使重建项目：java.io。 FileNotFoundException：C：\target\classes\ehcache.xml（访问被拒绝）

我已经运行了File-> Invalidate caches。我已经重新启动Intellij并杀死了所有Java进程。最终，我再次使它重新构建，但是不确定我尝试用什么方法来解决问题。

当我尝试访问 Target文件夹时，它说访问被拒绝。 / p>

有人见过吗？

解决方案

如我的评论所述，我收到了同样的消息，但没有涉及任何访问权限问题。

这似乎在IDEA的使用上有些混乱。我可以通过删除 C：\Users\％USERNAME％\.IdeaIC13 system 目录来解决此问题。 c>（路径显然取决于IntelliJ IDEA版本）。

这将存储所有缓存和索引以及其他内容。我不得不承认，我不能确切地说出为什么这会有所帮助，但这似乎是使缓存无效的一种较粗略的方法，并且它可以工作。您的项目历史记录不会以这种方式删除，因此您实际上可以继续工作-只需重新扫描所有文件并且必须重建所有索引即可。

事件，这根本不是一个访问权限问题。

I am getting an error intermittently when I build my Java project in Intellij.

Internal caches are corrupted or have outdated format, forcing project rebuild: java.io.FileNotFoundException: C:\target\classes\ehcache.xml (Access is denied)

I have run File->Invalidate caches. I have restarted Intellij and killed all Java processes. I eventually get it to build again but not sure what thing I try does the trick.

When I try to access the 'Target' folder, it says Access Denied.

Anyone seen this before?

解决方案

As mentioned in my comment, I received the same message, but without any access right issues involved whatsoever.

It seemed to be some kind of confusion on IDEA's end. I was able to fix this by deleting the system directory in C:\Users\%USERNAME%\.IdeaIC13 (the path obviously depends on the IntelliJ IDEA version).

This stores all caches and indices among other things. I have to confess that I can't tell why exactly this helps, but it seems to be a rougher way to "invalidate caches" and it works. Your project history is not deleted this way, so you can practically continue working - just that all files have to be scanned again and all indices have to be rebuilt.

In any event, this was not an access rights problem at all.

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