Apps file cache.properties not found?

[ac4android]

Recently, I often get the error cache.properties not found
To fix this problem, I have to close the project and exit A/Studio64 2.2.3

What is it and how to stop it happening at all?

 

[Deleted User]

Looks like something related to the build system. You probably already found this, but just in case:

http://stackoverflow.com/questions/...ies-the-system-cannot-find-the-file-specified