Can't inherit AppcompatActivity all engineering suddenly become like this
Restart and invalidate Caches restart appcompat packages have been imported and the latest version of the XML file can't preview the strange

CodePudding user response:

Delete your idea, build folder, then close to open the project, waiting for synchronization is complete,

CodePudding user response:

reference 1st floor jklwan response:

delete you. The idea, build folder, then close to open the project, waiting for the synchronization is complete,

tried seems to be no and I create a new project also can appear the same mistake

CodePudding user response:

Don't understand, help top it, completely didn't make any android