Like this, I just started to learn android university, don't know how to settle this! O!!!!!!

CodePudding user response:

If the file is broken

CodePudding user response:

Establish a project again, if the new project is OK, the copy of the original code to come over to try again

CodePudding user response:

refer to the second floor hunter1193 response:

set up a project again, if the new project is OK, the original code copied "try again

To try to solve the thank you!