Site is Breaking after the theme installed and set as default

@anil.ivatury

I am not getting this error.
My Drupal version is 10.2.3

Also you may try by clearing cache because if you are making new theme as default then error may be due to caches.
If this is not solving error then try to comment the file menu--main.html.twig and let update here than i will try to debug again.

@anil.ivatury, I'm also not getting this error after setting it as default theme.
Drupal version 10.2.2.

Its Coming for 10.0.x version

Created patch for this issue .Please check. →

Hi @anil.ivatury I followed the steps and tested locally with Drupal 10.2.4 version, But I didn't get any error. Attaching the screenshot "image.png" for reference.