这个问题也快把我逼疯了，但我知道原因是什么。问题是eclipse不够聪明，不能在自定义的工作空间文件夹中创建与项目同名的文件夹。

解决这个问题的方法是确保你所有的项目都在一个与你的项目名称匹配的文件夹中，否则它会直接将你所有的项目文件转储到这个目录中。您最终看到这个错误的原因是因为它认为您正在将一个项目放在另一个项目中(可能读取了项目配置文件)。

I noticed this is especially a problem when not using the default workspace path. The way I solve this problem is to just add the Project Name to the end of location. So let's say you are putting a project named "HelloWorld" into /Users/name/Documents/projects/android/, you would want to manually add "HelloWorld" to the end of it, like this: /Users/name/Documents/projects/android/HelloWorld. This would ensure that the project is put in it's own folder called "HelloWorld" and not inside some other project. Be sure that if there are any projects not within folders into a folder of the same name as the project to solve the errors.

这个问题也快把我逼疯了，但我知道原因是什么。问题是eclipse不够聪明，不能在自定义的工作空间文件夹中创建与项目同名的文件夹。

解决这个问题的方法是确保你所有的项目都在一个与你的项目名称匹配的文件夹中，否则它会直接将你所有的项目文件转储到这个目录中。您最终看到这个错误的原因是因为它认为您正在将一个项目放在另一个项目中(可能读取了项目配置文件)。

I noticed this is especially a problem when not using the default workspace path. The way I solve this problem is to just add the Project Name to the end of location. So let's say you are putting a project named "HelloWorld" into /Users/name/Documents/projects/android/, you would want to manually add "HelloWorld" to the end of it, like this: /Users/name/Documents/projects/android/HelloWorld. This would ensure that the project is put in it's own folder called "HelloWorld" and not inside some other project. Be sure that if there are any projects not within folders into a folder of the same name as the project to solve the errors.

我也一直在为类似的问题而绞尽脑汁。唯一有帮助的就是遵循这篇文章中的步骤。

Suppose you have something like: /prj/workspace/prj1 /prj/workspace/prj2 And your eclipse workspace is in /prj/workspace level (i.e. /prj/workspace/.metadata). If you're having problem importing prj1 and prj2, you can either move your .metadata somewhere else (/prj/.metadata, /prj/eclipse/.metadata, etc.) or create a sub level in workspace so that it looks like: /prj/workspace/android/prj1 /prj/workspace/android/prj2 And import prj1 and prj2 again. In another word: as long as prj1, prj2, and .metadata are not in the same level it will be fine.

转到项目的。project文件，确保它显示的名称与项目文件夹中显示的名称相同。如果不是，请更改名称。它会起作用的。

以下是我做的非常有效的方法。我只是在通用下导入了一个现有的项目，而不是导入一个android项目。