hi there, so the error is clearly found here:
1:51:14 PM: npm ERR! code ENOENT
1:51:14 PM: npm ERR! syscall open
1:51:14 PM: npm ERR! path /opt/build/repo/package.json
1:51:14 PM: npm ERR! errno -2
1:51:14 PM: npm ERR! enoent ENOENT: no such file or directory, open ‘/opt/build/repo/package.json’
1:51:14 PM: npm ERR! enoent This is related to npm not being able to find a file.
1:51:14 PM: npm ERR! enoent
There is no package.json in your project for some reason. Maybe you forgot to commit it, or it is excluded via a .gitignore? We need a package.json file in order to install the correct versions of the dependencies your project needs in order to be built, and to determine which build scripts to run.
This general debugging post might also be helpful: