About creating an Android project R file loss problem

Today began to learn Android, for a long time did not open eclipse, the establishment of Android engineering always error, so the hands of the appcompat-v7 to delete, and then set up the project after the APPCOMPAT-V7 has a small fork, Baidu has a good, Just remembered. To change the SDK version

Bar: Right-click APPCOMPAT-V7 Select Properties to set the SDK version to the highest 5.1.1

Then create an Android project, and at the beginning my compilation SDK chose the

Then error, and no R file

Later.

Changed to 5.1.1 and then it's right, R files are also

Anyway, I was out of this mistake, pay attention to the package name what the random, the project name I also use the Chinese, I do not know what happened, anyway, it is OK, probably their own environment is not good, for reference only

About creating an Android project R file loss problem