Command failed with exit code 1: npm run build while local deployment is fine

[nathanmartin]

@Maya2234 Change your Build command to CI= npm run build

This is explained in many threads, but I explained it again recently in detail here:

Page not found in netlify but works in localhost

There seems to be a bit of confusion in this thread concerning CI= at the start of the Build command. This is to be exected if your build is throwing warnings. By default CI is set to true. When it is true warnings are treated as errors, and errors cause your build to fail. Having CI= sets the CI environment variable to false, and allows your build to completely successfully even when it is throwing warnings that you don’t intend to fix. It is mentioned as a reserved environment variable …