问题:

When I add appcompat project as a library I get these errors:

- found 2 versions of android-support-v4.jar in the dependency list appcompat in  android. 

- `aapt.exe` has stop working.

How to solve this?

回答1:

Delete android-support-v4.jar from library and project. Then go in <sdk>/extras/android/support/samples/Support4Demos/ and copy android-support-v4.jar and paste in libs folder of both.

回答2:

Generally you get this error when you add external library which already contains android-support-v4.jarfile.

Here you can delete this android-support-v4.jar file from your libs folder. This will solve your problem.

回答3:

I too had same problem just few day's back and what i did is, just deleted the android-support-v4.jar from my project, and then i have added my library project jar by right clicking my project -> go to properties, select java Build Path and then select add external jar from the option and select android-support-v4.jar from your library project and then click on Order and export and check mark android-support-v4.jar that you have added from library project and then press Ok.

That's it. Enjoy Coding