Common installation issues

Property 'eggId' does not exist on type 'Server'. after installing Blueprint

Congratulations, you installed stock Blueprint on top of Nova. Stock Blueprint is incompatible with Nova. The only fix for this is to go through manual installation, then install Blueprint for Nova.

"Command failed with exit code 1" with no other errors in the console

Your server does not have enough RAM for the build process to finish cleanly. Ideally it should have 4 GB of RAM or more, alongside some swap. If you cannot add more memory to your panel server, try building your panel on another machine.