Exception: `Object is invalid, value 3 is not a string`

[SRK-AFH]

{"reqId":"Z6HNRLC9LoSqENu-VtRZ5QAAAMI","level":3,"time":"2025-02-04T08:18:13+00:00","remoteAddr":"2a02:8106:22:bb00:51dc:55b7:1e11:fa20","user":"Klausch","app":"activity","method":"GET","url":"/ocs/v2.php/apps/dashboard/api/v2/widget-items?widgets%5B%5D=activity","message":"Object is invalid, value 3 is not a string","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0","version":"31.0.0.12","exception":{"Exception":"OCP\\RichObjectStrings\\InvalidObjectExeption","Message":"Object is invalid, value 3 is not a string","Code":0,"Trace":[{"file":"/home/sites/site100006357/web/lib/private/RichObjectStrings/Validator.php","line":59,"function":"validateParameter","class":"OC\\RichObjectStrings\\Validator","type":"->"},{"file":"/home/sites/site100006357/web/apps/activity/lib/GroupHelper.php","line":74,"function":"validate","class":"OC\\RichObjectStrings\\Validator","type":"->"},{"file":"/home/sites/site100006357/web/apps/activity/lib/GroupHelper.php","line":46,"function":"addEvent","class":"OCA\\Activity\\GroupHelper","type":"->"},{"file":"/home/sites/site100006357/web/apps/activity/lib/Data.php","line":231,"function":"addActivity","class":"OCA\\Activity\\GroupHelper","type":"->"},{"file":"/home/sites/site100006357/web/apps/activity/lib/Dashboard/ActivityWidget.php","line":136,"function":"get","class":"OCA\\Activity\\Data","type":"->"},{"file":"/home/sites/site100006357/web/apps/dashboard/lib/Controller/DashboardApiController.php","line":119,"function":"getItemsV2","class":"OCA\\Activity\\Dashboard\\ActivityWidget","type":"->"},{"file":"/home/sites/site100006357/web/lib/private/AppFramework/Http/Dispatcher.php","line":200,"function":"getWidgetItemsV2","class":"OCA\\Dashboard\\Controller\\DashboardApiController","type":"->"},{"file":"/home/sites/site100006357/web/lib/private/AppFramework/Http/Dispatcher.php","line":114,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/home/sites/site100006357/web/lib/private/AppFramework/App.php","line":161,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/home/sites/site100006357/web/lib/private/Route/Router.php","line":306,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/home/sites/site100006357/web/ocs/v1.php","line":49,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/home/sites/site100006357/web/ocs/v2.php","line":7,"args":["/home/sites/site100006357/web/ocs/v1.php"],"function":"require_once"}],"File":"/home/sites/site100006357/web/lib/private/RichObjectStrings/Validator.php","Line":85,"message":"Object is invalid, value 3 is not a string","exception":[],"CustomMessage":"Object is invalid, value 3 is not a string"},"id":"67a1cd607e8af"}

[hcwinsemius]

I can confirm. I have the same error appearing. Detailed log below:

{"reqId":"f4P9YdUUGmJard2CT0Yu","level":3,"time":"2025-03-01T20:45:25+00:00","remoteAddr":"213.10.110.70","user":"hcwinsemius","app":"activity","method":"GET","url":"/ocs/v2.php/apps/activity/api/v2/activity?previews=true&since=0&limit=50&format=json","message":"Object is invalid, value 559 is not a string","userAgent":"Mozilla/5.0 (Linux) mirall/3.11.0git (Nextcloud, ubuntu-6.11.0-17-generic ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"31.0.0.18","exception":{"Exception":"OCP\\RichObjectStrings\\InvalidObjectExeption","Message":"Object is invalid, value 559 is not a string","Code":0,"Trace":[{"file":"/var/www/html/lib/private/RichObjectStrings/Validator.php","line":59,"function":"validateParameter","class":"OC\\RichObjectStrings\\Validator","type":"->","args":[{"type":"file","id":559,"name":"P030_PartnersForWater","path":"Projects/P030_PartnersForWater","link":"https://nextcloud.rainbowsensing.synology.me/f/559"}]},{"file":"/var/www/html/apps/activity/lib/GroupHelper.php","line":74,"function":"validate","class":"OC\\RichObjectStrings\\Validator","type":"->","args":["You shared {file} with {email} by mail",{"file":{"type":"file","id":559,"name":"P030_PartnersForWater","path":"Projects/P030_PartnersForWater","link":"https://nextcloud.rainbowsensing.synology.me/f/559"},"email":{"type":"email","id":"h.c.winsemius@gmail.com","name":"h.c.winsemius@gmail.com"}}]},{"file":"/var/www/html/apps/activity/lib/GroupHelper.php","line":46,"function":"addEvent","class":"OCA\\Activity\\GroupHelper","type":"->","args":[125,{"__class__":"OC\\Activity\\Event"}]},{"file":"/var/www/html/apps/activity/lib/Data.php","line":231,"function":"addActivity","class":"OCA\\Activity\\GroupHelper","type":"->","args":[{"0":"And 10 more entries, set log level to debug to see all entries","activity_id":125,"timestamp":1740845919,"priority":30,"type":"shared","user":"hcwinsemius"}]},{"file":"/var/www/html/apps/activity/lib/Controller/APIv2Controller.php","line":189,"function":"get","class":"OCA\\Activity\\Data","type":"->","args":[{"__class__":"OCA\\Activity\\GroupHelper"},{"__class__":"OCA\\Activity\\UserSettings"},"hcwinsemius",0,36,"desc","all","",0]},{"file":"/var/www/html/apps/activity/lib/Controller/APIv2Controller.php","line":120,"function":"get","class":"OCA\\Activity\\Controller\\APIv2Controller","type":"->","args":["all",0,50,true,"",0,"desc"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":200,"function":"getDefault","class":"OCA\\Activity\\Controller\\APIv2Controller","type":"->","args":[0,50,true,"",0,"desc"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":114,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Activity\\Controller\\APIv2Controller"},"getDefault"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":161,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Activity\\Controller\\APIv2Controller"},"getDefault"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":307,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Activity\\Controller\\APIv2Controller","getDefault",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"ocs.activity.apiv2.getdefault"}]},{"file":"/var/www/html/ocs/v1.php","line":49,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/ocsapp/apps/activity/api/v2/activity"]},{"file":"/var/www/html/ocs/v2.php","line":7,"args":["/var/www/html/ocs/v1.php"],"function":"require_once"}],"File":"/var/www/html/lib/private/RichObjectStrings/Validator.php","Line":85,"message":"Object is invalid, value 559 is not a string","exception":[],"CustomMessage":"Object is invalid, value 559 is not a string"},"id":"67c42d0e2391d"}

[MosfetN]

Hello,
I also have the problem after upgrading to 31.0.0
It seems to be related to subjectparams in table oc_activity

[e64462]

Possibly related, but different message after upgrade to NC 31

This issue creates a substantial number of log entries, so I've suspended the Activity app until this is marked as resolved.

{
  "reqId": "AHsOJDyL5lBBhGlirGY6",
  "level": 3,
  "time": "2025-03-11T04:28:08+00:00",
  "remoteAddr": "xxx.xxx.xxx.xxx",
  "user": "user",
  "app": "activity",
  "method": "GET",
  "url": "/ocs/v2.php/apps/activity/api/v2/activity/cospend?format=json&limit=50",
  "message": "Object is invalid, value 0 is not a string",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0",
  "version": "31.0.0.18",
  "exception": {
    "Exception": "OCP\\RichObjectStrings\\InvalidObjectExeption",
    "Message": "Object is invalid, value 0 is not a string",
    "Code": 0,
    "Trace": [
      {
        "file": "/opt/nextcloud/lib/private/RichObjectStrings/Validator.php",
        "line": 59,
        "function": "validateParameter",
        "class": "OC\\RichObjectStrings\\Validator",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/apps/activity/lib/GroupHelper.php",
        "line": 74,
        "function": "validate",
        "class": "OC\\RichObjectStrings\\Validator",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/apps/activity/lib/GroupHelper.php",
        "line": 46,
        "function": "addEvent",
        "class": "OCA\\Activity\\GroupHelper",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/apps/activity/lib/Data.php",
        "line": 231,
        "function": "addActivity",
        "class": "OCA\\Activity\\GroupHelper",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/apps/activity/lib/Controller/APIv2Controller.php",
        "line": 189,
        "function": "get",
        "class": "OCA\\Activity\\Data",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/apps/activity/lib/Controller/APIv2Controller.php",
        "line": 136,
        "function": "get",
        "class": "OCA\\Activity\\Controller\\APIv2Controller",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 200,
        "function": "getFilter",
        "class": "OCA\\Activity\\Controller\\APIv2Controller",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 114,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/lib/private/AppFramework/App.php",
        "line": 161,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/lib/private/Route/Router.php",
        "line": 307,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::"
      },
      {
        "file": "/opt/nextcloud/ocs/v1.php",
        "line": 49,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->"
      },
      {
        "file": "/opt/nextcloud/ocs/v2.php",
        "line": 7,
        "args": [
          "/opt/nextcloud/ocs/v1.php"
        ],
        "function": "require_once"
      }
    ],
    "File": "/opt/nextcloud/lib/private/RichObjectStrings/Validator.php",
    "Line": 85,
    "message": "Object is invalid, value 0 is not a string",
    "exception": [],
    "CustomMessage": "Object is invalid, value 0 is not a string"
  },
  "id": "67cfbbf571327"
}

[DrDBanner]

Same

[SeconderYT]

Hi, we're having the same problem.
I can't say if it's been happening since the upgrade to NC 31, since we weren't using the app before :)

[xTGHHx]

Same here. Plenty of those errors in activity app. In my case it seems like events triggered by Phonetrack are missing the user.
Entries in the activity table of this app don't have a user set. Or - Activity does not handle user data properly.
If no user data is found a default value should be set like 'n/a', 'no-user' or alike.

[joshtrichards]

These types of errors are logged if an app isn't providing the right value type (see nextcloud/server#47662) according to the definitions found in https://github.com/nextcloud/server/blob/master/lib/public/RichObjectStrings/Definitions.php

The latest versions of Nextcloud Server a bit more extended message, giving hints about which placeholder needs to be adjusted/etc (nextcloud/server#51442).

For example, in the one described in #1967:

"message": "Object for placeholder user is invalid, value 0 for key id is not a string",

Based on the output and the definitions for user, the id parameter should be a string not an integer:

https://github.com/nextcloud/server/blob/39dc22b9dd7f6b7c44e98470055d8d2be877a702/lib/public/RichObjectStrings/Definitions.php#L628-L638

These need to be isolated to a given app and then addressed in each app's Activity Provider.

Same here. Plenty of those errors in activity app. In my case it seems like events triggered by Phonetrack are missing the user.

The Phonetrack one may be this one here:

https://github.com/julien-nc/phonetrack/blob/66dbfdbb10f50252ed05ac37f09880848e692cc4/lib/Activity/PhonetrackProvider.php#L77-L80

(there could be other spots; handle those in the app's own bug reporting channel)