Error: resource Android: attr/dialogcornerradius not found
1. Problem description
Running the Android studio program generates an error error error: resource Android: attr/dialogcornerradius not found
2. Analyze the causes
Compilesdkversion, buildtoolsversion and targetsdkversion do not match
3. Solutions
Set compilesdkversion and buildtoolsversion to high version and targetsdkversion to low version
4. Specific operation steps
Step 1: check the version numbers of compile SDK version, build tools version and targetsdkversion
Step 2: in the project structure interface, select modules and modify the version numbers of compile SDK version and build tools version
Requirement: compile SDK version and build tools version should be higher than targetsdkversion
Step3: Step 2 after modifying the version number, Android studio will automatically update. After the update, run the program again to solve the error problem.