Android Engineering Gen Catalog failed to generate a summary of the workarounds

The Gen file in Android is linked to a bridge in the resource definition of the program and XML, so if the Gen folder is empty there may be several reasons for the following:

1.XML file error, you can check files in res folder for errors

2. Import the new Android project, may be the Android version of the incorrect error, you can right click on the project selection properties, and then select a version of Android can be

3. The imported version of Android has a coding error, originally written by UTF8 results import defaults to GBK

Android Engineering Gen Catalog failed to generate a summary of the workarounds