After doing a one-click update of an instance to 2.9.0.beta2 I see a blank screen with these errors in the dev console:
I’m using the following plugins:
3 „Gefällt mir“
these are official plug-ins and should not give issues.
Have you tried viewing your site in safe mode
Same issue: white screen + JS error.
1 „Gefällt mir“
Have the same problem…
1 „Gefällt mir“
same here, same here
1 „Gefällt mir“
Same here 
Hope a fix is coming very soon!
1 „Gefällt mir“
Same here:
loader.js:247 Uncaught Error: Could not find module `handlebars` imported from `discourse-common/lib/raw-handlebars`
at loader.js:247:1
at c (loader.js:258:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at requireModule (loader.js:24:1)
at discourse-boot.js:12:1
at Array.forEach (<anonymous>)
at discourse-boot.js:10:1
1 „Gefällt mir“
Same issue here as well with the same error in the js console.
Uncaught Error: Could not find module `handlebars` imported from `discourse-common/lib/raw-handlebars`
at loader.js:247:1
at c (loader.js:258:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at requireModule (loader.js:24:1)
at discourse-boot.js:12:1
at Array.forEach (<anonymous>)
at discourse-boot.js:10:1
We’re using the following plugins:
I get the following warnings during the build
Bundle complete! 127 Gemfile dependencies, 176 gems now installed.
Gems in the groups 'test' and 'development' were not installed.
Bundled gems are installed into `./vendor/bundle`
I, [2022-02-14T13:34:51.839391 #1] INFO -- : > cd /var/www/discourse && [ ! -d 'node_modules' ] || su discourse -c 'yarn install --production && yarn cache clean'
warning Resolution field "lodash@4.17.21" is incompatible with requested version "lodash@4.17.15"
warning " > @mixer/parallel-prettier@2.0.1" has unmet peer dependency "prettier@^2.0.0".
1 „Gefällt mir“
I have tried the safe-mode, I am also getting the handlebars missing error. Only white screen on the app, along with a load time in ms on the top left.
Uncaught Error: Could not find module `handlebars` imported from `discourse-common/lib/raw-handlebars`
at loader.js:247:1
at c (loader.js:258:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at s.findDeps (loader.js:168:1)
at c (loader.js:262:1)
at requireModule (loader.js:24:1)
at discourse-boot.js:12:1
at Array.forEach (<anonymous>)
at discourse-boot.js:10:1
I’m taking a look into this now. Is anyone able to share a link to a site with this issue? (via PM is fine, if you prefer not to make it public)
2 „Gefällt mir“
Not sure I have permissions to PM you - as I just joined…
1 „Gefällt mir“
I’ve got some examples now, thanks all!
3 „Gefällt mir“
I just pushed a fix: FIX: Update application_helper logic now that Ember CLI is default (#… · discourse/discourse@f078d1a · GitHub
Please run another update - it should get things working again. So sorry for the disruption!
@Anton_Akhmerov @RobertBrockie @pinkd @simevo @Canapin @CRCinAU @Alex_Harrington @k4rtik
15 „Gefällt mir“
Is this sufficient to run the required update?
# cd /var/discourse/
# ./launcher rebuild app
Yes, or you can type a URL like https://your-site.com/admin/upgrade into your address bar - the update UI should still be functional even though the main application is broken.
3 „Gefällt mir“
Can confirm - updated and things are working back as normal. Thanks @david
2 „Gefällt mir“
Yes that has worked for me too. Thanks @david
3 „Gefällt mir“
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.