Getting 'EADDRNOTAVAIL' error

I am getting this error when I tried 
```gen . --out-dir dist```
```
  code: 'EADDRNOTAVAIL',
  errno: 'EADDRNOTAVAIL',
  syscall: 'listen',
  address: 'fe80::9c6b:3ddc:9d33:a634',
  port: 8000
```
I tried with different port as well