Some items on github is generated using android studio, and did not provide all of the support library, then we need to download them one by one down the library, all imported into the eclipse, and configure the appropriate support library.
Under normal circumstances, no problem.
However, when this project needs support library version it has been updated many times, and this project was possible with the version already far, resulting in incompatibility error occurred.
After this time the need to find an error in the document editing time, and then download the appropriate version prior to this time support libraries on github, import, import path correction, ok
Reproduced in: https: //www.cnblogs.com/thirstycoder/p/3687134.html