bug: today rely on packaged items reinstall when an error occurs:
Class constructor FileManager CAN not BE the Invoked the without 'new new'
Solution: try a variety of solutions, locking effective solutions
1. Modify package.json inside: "less": "^ 3.9.0 " to "less": "~ 3.9.0"
2. Delete node_modules, and then re-install package, packaging success