main.ts error

[sarashid]

After clone demo and install node packages this error appears when using ng serve:

ERROR in multi (webpack)-dev-server/client?http://0.0.0.0:0/sockjs-node&sockPath=/sockjs-node ./src/main.ts Module not found: Error: Can't resolve 'D:\angular-diagram-demo\src\main.ts' in 'D:\angular-diagram-demo'.