Admin page shows errors after upgrading to v3.5.3

[xwj]

The admin page is showing errors after upgrading from version v3.5.2 to v3.5.3

And reports the following error:

loader.js:247 Uncaught (in promise) Error: Could not find module discourse/admin/models/admin-plugin imported from discourse/plugins/docker_manager/discourse/models/repo
at loader.js:247:1
at a (loader.js:258:1)
at s.findDeps (loader.js:168:1)
at a (loader.js:262:1)
at s.findDeps (loader.js:168:1)
at a (loader.js:262:1)
at requireModule (loader.js:24:1)
at n.i [as getRoute] (index.ts:121:18)
at p._getQPMeta (index.ts:101:20)
(anonymous) @ loader.js:247
a @ loader.js:258
(anonymous) @ loader.js:168
a @ loader.js:262
(anonymous) @ loader.js:168
a @ loader.js:262
requireModule @ loader.js:24
i @ index.ts:121
_getQPMeta @ index.ts:101

It works normally after disabling plugins, but I can’t pinpoint which plugin is causing the issue. Can you help me take a look?

[xwj]

The issue persists when “Disable unofficial client plugin customizations” is enabled in Safe Mode, but it works correctly when “Disable all client plugin customizations” is enabled.

[NateDhaliwal]

3.5.3 is no longer supported. Please see https://releases.discourse.org.

[Heliosurge (Dan DeMontmorency)]

As Nate said that is a very old version now. Maybe try a command line update.

[xwj]

Which version do you recommend upgrading to? Will skipping multiple versions cause more compatibility issues?

[xwj]

It failed immediately after upgrading to 2026.1.1

[merefield (Robert)]

Check your /logs for suspect messages.

[Ed_S]

If the web upgrade fails, you need to use ssh to login as root and do a command line upgrade.

[xwj]

[darkpixlz (Pyx)]

Can you try a command line rebuild as the reply above suggests? That will likely fix it, I’ve never seen an issue from version jumps..

[xwj]

What is the specific command? My service is packaged into a Docker image and deployed on a remote server’s K8s cluster. The deployment uses the web_only method.

Additionally, when an error occurs on the administrator page, the following error message appears:

[darkpixlz (Pyx)]

@xwj

Could you please tell me the specific command?

Go to where you installed Discourse and type ./launcher rebuild app - wherever discourse_docker is. I believe /var/discourse is the “recommended” place to put the script but it might be different for you.

[pfaffman (Jay Pfaffman)]

@xwj

What is the specific command? My service is packaged into a Docker image and deployed on a remote server’s K8s cluster

That’s not supported. You’ll need to do something to load the latest image. You’ll need to migrate the database. There’s usually no problem upgrading multiple versions.

[xwj]

It seems the database migration failed. The following error was reported.

TOP => db:migrate => assets:precompile:asset_processor │
│ full trace by running task with --trace) │
│ executing /etc/runit/1.d/00-ensure-links │
│ executing /etc/runit/1.d/01-cleanup-web-pids │
│ executing /etc/runit/1.d/anacron │
│ executing /etc/runit/1.d/cleanup-pids │
│ stale PID files │
│ executing /etc/runit/1.d/copy-env │
│ runsvdir, PID is 1126 │
│ aborted! │
│ pnpm -C=frontend/asset-processor node build.js (Discourse::Utils::CommandError) │
│ Failed to switch pnpm to v10.28.0. Looks like pnpm CLI is missing at “/home/discourse/.local/share/pnpm/.tools/pnpm/10.28.0/bin” or is incorrect │
│ /home/discourse/.local/share/pnpm/.tools/pnpm/10.28.0/bin/pnpm EACCES

When I checked the specific pnpm path, I found that the path existed, but the pnpm.cjs file lacked execute permissions, which caused the error.

drwxrwxrwx root root /
drwxr-xr-x root root home
drwxr-x— discourse discourse discourse
drwxr-x— discourse discourse .local
drwxr-x— discourse discourse share
drwxr-x— discourse discourse pnpm
drwxr-x— discourse discourse .tools
drwxr-x— discourse discourse pnpm
lrwxrwxrwx discourse discourse 10.28.0 → 10.28.0_tmp_9_0
drwxr-x— discourse discourse 10.28.0_tmp_9_0
drwxr-x— discourse discourse bin
lrwxrwxrwx discourse discourse pnpm → ../node_modules/pnpm/bin/pnpm.cjs
drwxr-x— discourse discourse ..
drwxr-x— discourse discourse node_modules
drwxr-x— discourse discourse pnpm
drwxr-x— discourse discourse bin
-rw-r----- discourse discourse pnpm.cjs

Later, after pre-installing the corresponding version of pnpm using corepack in the image, the database migration succeeded. The service is now normal.