Appears "connot find module './application'" error when class command, you can refer to the following solutions
1. Under the project folder (you can back up what items just in case) node_modules delete files and package-lock.json file. Note that not package.json (if deleted can not afford, look at the project is not opened, closed and then try)
2. Run npm install under the project, the results are as follows
3. Run nodemon index.js again, the problem is resolved. Results are as follows:
