No url found for submodule path

[septst]

Hello,

This is my first time trying Static Web Apps. I tried deployed my angular application using static web app vs code extension and ran into this error:

No url found for submodule path 'gitgraph-generator' in .gitmodules

This I say public repo: https://github.com/septst/gitgraph-generator

Please advise!

Thanks,
Parth