Android Development has a frequently occurring problem with theR file missing.
① the cause of this error is generally an XML file write error, if the development of the R file is missing, the configuration is not modified in the case of the general situation is an XML error.
② There is the creation of the time when the R file lost error.
② solution: Not necessarily generic, but can solve one of them.
The habitual clean project-> then finds that the error is more, prompting the support package error--to see the package of the imported support, and to see the import of the support3.0.4 version that you can run and copy to the new project.
or error- --accidentally found that their own package of support version is 3.1.1. The change version is 3.1.1, then rebuild. Successfully resolved .
Android Studio Create project R file missing solution