Vim 9 Issue: "Got file with invalid extension"

[mthbrown]

Hi,

With the exact same compilation flags, I find that marvim works fine on Vim 8 but keeps giving me the error:

Got file with invalid extension

when using Vim 9 when I press F2 and select a macro. Any suggestions? Thanks

[tonimarante]

Hello, that made me crazy for weeks. The solution is as simple as rename your macro files with the .mv9 extension