unable to use convert.ly

[Immanuel Asmus]

Hello,

I recently updated to Lilypond 2.24.1 and tried to automatically convert a file from version 2.22.2. I tried the following:

• Opened a file in Frescobaldi, chose „update with convert-ly". The version numbers are found, but the OK button is greyed out and won’t do anything.
• So I tried „save as file“. This created an empty .txt file, but no .ly file (at least not in the original directory) nor did it change the original .ly file.
• I opend the power shell (I’m on Win 10) from the folder where my .ly files are, typed convert-ly -e *.ly (I tried as well with a specific file name) and hit enter. I got the message (in German, I’ll roughly translate it):Fehler beim Ausführen des Programms "convert-ly.py": Program not foundIn line:1 char:2
  +  convert-ly -e *.ly
  +  ~~~~~~~~~~~~~~~~~~.
  In line:1 char:2
  +  convert-ly -e *.ly
  +  ~~~~~~~~~~~~~~~~~~
      + CategoryInfo          : ResourceUnavailable: (:) [], ApplicationFailedException
      + FullyQualifiedErrorId : NativeCommandFailed
  
• I copied convert-ly.py into the folder where the .ly files are located and tried again. Same result.
• I added my lilypond folder to the path variables. Still same result.
  
• I tried different locations to extract the .zip file: First, I extracted it to Program Files (x86)\Lilypond. Then I tried Users\[my account]\AppData\Local. Last I tried directly C:\. Same result.

I uninstalled the previous lilypond copy. Maybe that was my mistake?

Any help would be appreciated.

Regards,
Immanuel