Recent projects have used the V7 package, which contains V4. When I import the other library inside also bring the V4 package to cause the conflict.
There are several ways to find solutions on the Internet:
1. Delete one of the V4 packages. No, there will be an error.
2. Copy one of the packages to the same location as the other package and overwrite them. No, it will be an error.
Finally, finally find a problem, need to the library order and export jar package uncheck.
Specific steps right-Library--properties--java Build path--order and export, find the conflict jar package, if not found Android Private Libraries, will be the front of the tick to cancel, You can compile and run it.
Finally say two words, cherish life, away from Eclipse. Android Studio is a little too much trouble to learn earlier, and many of the open source libraries on GitHub don't support eclipse.
Android project referencing different libraries causes multiple ANDROID-SUPPORT-V4 package conflict issues