Install failed - how to debug?

[mukulele]

My setup:
Signalk server 2.5.0 on docker without node red embedded

Tried to install https://www.npmjs.com/package/signalk-to-influxdb from signalk appstore
Result : Status failed

[tkurki]

Check the server log. Also just restart and try again, could be just temporary.

[mukulele]

A server restart did not solve the problem
Please see below the error messages from server.log

Jan 16 15:05:33 Could not start mDNS:TypeError: argument 8 must be an integer (port)
...

Jan 16 15:07:25 POST /skServer/appstore/install/signalk-to-influxdb/1.9.1 200 442.334 ms - 33
Jan 16 15:07:28 stderr: npm
Jan 16 15:07:28 stderr: ERR! code EJSONPARSE
Jan 16 15:07:28 stderr: npm ERR! path /home/node/.signalk/package.json
Jan 16 15:07:28 stderr: npm
Jan 16 15:07:28 stderr: ERR! JSON.parse
Jan 16 15:07:28 stderr: Unexpected token "}" (0x7D) in JSON at position 554 while parsing near "...2000": "^2.17.0",\n }\n}\n" npm ERR! JSON.parse Failed to parse JSON data.
Jan 16 15:07:28 stderr: npm ERR! JSON.parse Note: package.json must be actual JSON, not just JavaScript.
Jan 16 15:07:28 stderr:
Jan 16 15:07:28 stderr: npm ERR! A complete log of this run can be found in: /home/node/.npm/_logs/2024-01-16T15_07_26_923Z-debug-0.log

[tkurki]

The file /home/node/.signalk/package.json is corrupt. You can try to fix it or just remove it. It contains a list of your installed plugins in casee you’d want to reinstall them on the same or another server, so removing it is not a disaster.