[SOLVED] Upgrade problem ?

[Didier B]

Hi, i decided to move from 0.8.0 to latest version to add a beta tester !

so I started with NOOBS, and asked to upgrade OP to latest, after a long long process I finished with a beatiful splash screen, applied the necessary setup but couldn't start OP, instead when lauching from terminal I get this :

Signal K starting
module.js:471
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/.config/signalk-server-node/lib/index.js:22:15)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
[Errno 111] Connection refused
Signal K starting
module.js:471
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/.config/signalk-server-node/lib/index.js:22:15)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
Traceback (most recent call last):
  File "/home/pi/.config/openplotter/openplotter", line 3535, in <module>
    MainFrame().Show()
  File "/home/pi/.config/openplotter/openplotter", line 224, in __init__
    self.page_sk()
  File "/home/pi/.config/openplotter/openplotter", line 2994, in page_sk
    response = requests.get('http://localhost:3000/signalk')
  File "/usr/lib/python2.7/dist-packages/requests/api.py", line 60, in get
    return request('get', url, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/api.py", line 49, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 457, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 569, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 407, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', error(111, 'Connection refused'))
pi@openplotter:~ $ [Errno 111] Connection refused