Problem with create Dir & Save txt file

you are not able to copy a file to an arbitrary directory anymore after the SDK30 release...

I do not know how @anonwins was able to copy a file to a shared directory using the file extension, see also my tests here API 30 workarounds v2 - #19 by Taifun

but you can copy a file to the shared storage /Download using the file component, see my test project here

Taifun