An attempt to create a project after adding the values ​​of -21 folders and showed an error

Question

: application: mergeDebugResources FAILED C: \ Users \ a \ AndroidStudioProjects \ MyApplication2 \ application \\ SRC \ basic \ resolution value-21 Error: Error: Invalid resource directory name Error: Completed for task ': app: mergeDebugResources'.

C: \ Users \ abc \ AndroidStudioProjects \ MyApplication2 \ app \ src \ main \ res \ values-21: Error: Invalid resource directory name

Answer 1

Change the name of the values-21 folder to values-v21 .