...looking at the ./gulpfile.js line 26. It looks as 'sp-build-tasks' is being configured to look taskPath: './tools/tasks' instead './build/tasks',
generated ./gulpfile.js warns against modifying this file directly so I created .\tools\tasks\example.js and ran 'gulp example' to test as well as 'gulp --tasks' and it worked.
...looking at the ./gulpfile.js line 26. It looks as 'sp-build-tasks' is being configured to look taskPath: './tools/tasks' instead './build/tasks',
generated ./gulpfile.js warns against modifying this file directly so I created .\tools\tasks\example.js and ran 'gulp example' to test as well as 'gulp --tasks' and it worked.