hi there,
your problem is definitely this:
11:47:47 AM: Executing user command: gulp build
11:47:49 AM: [09:47:49]
11:47:49 AM: Using gulpfile /opt/build/repo/gulpfile.js
11:47:49 AM: [09:47:49]
11:47:49 AM: Task never defined: build
11:47:49 AM: [09:47:49]
11:47:49 AM: To list available tasks, try running: gulp --tasks
something, likely the commands listed out in your package.json, isn’t set up correctly.
here you are saying: “hey gulp, run the build command” but I am going to guess that the build command isn’t defined in your package.json.
This Common Issue contains a ton of useful debugging tips for things like this.
If you are still having problems, please provide as much information as you can on what you have already tried, your package.json, etc. Thanks!