# Starting discourse fails with bootstrap error
**URL:** https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213
**Category:** Development
**Created:** [June 27, 2017, 5:15pm UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213 "2017-06-27T17:15:01Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@manishramteke](https://meta.discourse.org/u/manishramteke)
#### Post date: [June 27, 2017, 5:15pm UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/1 "2017-06-27T17:15:02Z")
Hi Team,
Facing below error when tried running rails server
/var/lib/gems/2.3.0/gems/bootsnap-1.0.0/lib/bootsnap/compile\_cache/iseq.rb:73:in `compile\_option\_crc32=': wrong argument type Bignum (expected Fixnum) (TypeError)
Running discourse on ubuntu 16.4 and installing in development mode (non docker).
Regards
Manish
---
### Author:  [@joebuhlig](https://meta.discourse.org/u/joebuhlig)
#### Post date: [June 27, 2017, 7:38pm UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/2 "2017-06-27T19:38:49Z")
I think I have a related issue. I’m the proud owner of a brand new MacBook Pro and was setting up a new Discourse development environment. I followed @techAPJ’s [how to for this](https://meta.discourse.org/t/beginners-guide-to-install-discourse-on-mac-os-x-macos-for-development/15772) to the letter. It all went perfect (well done, sir!) except for the letter avatars. They fail to load.
I did some digging and found this error trace:
```plaintext
RuntimeError - Circular dependency detected while autoloading constant OptimizedImage:
activesupport (4.2.8) lib/active_support/dependencies.rb:492:in `load_missing_constant'
bootsnap (1.0.0) lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in `block in load_missing_constant'
bootsnap (1.0.0) lib/bootsnap/load_path_cache/core_ext/active_support.rb:6:in `with_bootsnap_fallback'
bootsnap (1.0.0) lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in `load_missing_constant'
activesupport (4.2.8) lib/active_support/dependencies.rb:184:in `const_missing'
lib/letter_avatar.rb:51:in `block in generate'
lib/distributed_mutex.rb:21:in `synchronize'
lib/distributed_mutex.rb:5:in `synchronize'
lib/letter_avatar.rb:34:in `generate'
app/controllers/user_avatars_controller.rb:39:in `show_proxy_letter'
actionpack (4.2.8) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (4.2.8) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.8) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.8) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.8) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.8) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
activesupport (4.2.8) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.8) lib/active_support/callbacks.rb:92:in ` __run_callbacks__'
activesupport (4.2.8) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
activesupport (4.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.8) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.8) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.8) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.8) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.8) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.8) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.8) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.8) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.8) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.8) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.8) lib/action_view/rendering.rb:30:in `process'
rack-mini-profiler (0.10.5) lib/mini_profiler/profiling_methods.rb:76:in `block in profile_method'
actionpack (4.2.8) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.8) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.8) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:43:in `serve'
actionpack (4.2.8) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.8) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.8) lib/action_dispatch/routing/route_set.rb:817:in `call'
rack-protection (1.5.3) lib/rack/protection/frame_options.rb:31:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/strategy.rb:189:in `call!'
omniauth (1.6.1) lib/omniauth/strategy.rb:167:in `call'
omniauth (1.6.1) lib/omniauth/builder.rb:63:in `call'
rack (1.6.8) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.8) lib/rack/head.rb:13:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.8) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.8) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.8) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.8) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.8) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.8) lib/active_support/callbacks.rb:88:in ` __run_callbacks__'
activesupport (4.2.8) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.8) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
logster (1.2.7) lib/logster/middleware/reporter.rb:31:in `call'
config/initializers/100-silence_logger.rb:27:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.8) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.8) lib/rack/runtime.rb:18:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/static.rb:120:in `call'
actionpack (4.2.8) lib/action_dispatch/middleware/static.rb:120:in `call'
rack (1.6.8) lib/rack/sendfile.rb:113:in `call'
lib/middleware/missing_avatars.rb:21:in `call'
lib/middleware/turbo_dev.rb:34:in `call'
rack-mini-profiler (0.10.5) lib/mini_profiler/profiler.rb:171:in `call'
message_bus (2.0.2) lib/message_bus/rack/middleware.rb:62:in `call'
railties (4.2.8) lib/rails/engine.rb:518:in `call'
railties (4.2.8) lib/rails/application.rb:165:in `call'
railties (4.2.8) lib/rails/railtie.rb:194:in `method_missing'
rack (1.6.8) lib/rack/urlmap.rb:66:in `block in call'
rack (1.6.8) lib/rack/urlmap.rb:50:in `call'
rack (1.6.8) lib/rack/content_length.rb:15:in `call'
puma (3.9.1) lib/puma/configuration.rb:224:in `call'
puma (3.9.1) lib/puma/server.rb:602:in `handle_request'
puma (3.9.1) lib/puma/server.rb:435:in `process_client'
puma (3.9.1) lib/puma/server.rb:299:in `block in run'
puma (3.9.1) lib/puma/thread_pool.rb:120:in `block in spawn_thread'
```
Following that error are the related error traces for the missing images. Essentially, it seems as though the image size it’s looking for isn’t being created on startup.
I tried `rm -rf tmp` and restarted locally but that made no difference.
UPDATE: I ran the sidekiq job for `CreateMissingAvatars` thinking that may help. It did bring in the system user avatar but it applied that to my user account as well. I would have expected a letter avatar instead. But maybe that resolved it?
UPDATE2: Sorry. Not resolved. Here’s the error:
```plaintext
No such file or directory @ rb_file_s_ctime - /Users/joebuhlig/Codebase/discourse/tmp/letter_avatars/5_9923d3d1b8ee4d0450f1275952f90f00/J/185_229_243/64.png
```
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [June 27, 2017, 8:27pm UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/3 "2017-06-27T20:27:27Z")
> [@manishramteke](#):
>
> type Bignum (expected Fixnum)
This to me sounds like a Ruby version thing… can you raise this on the [bootsnap GitHub repo](https://github.com/Shopify/bootsnap).
My guess, somehow you had version 2.2 installed, you started Discourse and built the cache in `tmp/cache` later you started running Ruby version 2.3 and it tried reading the 2.2 cache.
My first port-of-call would be `rm -fr tmp/cache`
If you need to workaround for now comment out bootsnap in `app/boot.rb`
---
### Author:  [@manishramteke](https://meta.discourse.org/u/manishramteke)
#### Post date: [June 28, 2017, 4:58am UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/4 "2017-06-28T04:58:37Z")
Hi Sam,
I have been using ruby 2.3 as per dev install guide. Cleaning cache, installing dependencies and rerunning with ruby 2.3 did not work for me however commenting out bootsnap worked.
I will check on bootsnap thing, as you suggested. If I find solution will post it here.
Thanks for quick workaround. I am huge fan of discourse and team.
Regards
Manish
---
### Author:  [@angus](https://meta.discourse.org/u/angus)
#### Post date: [August 11, 2017, 3:26am UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/5 "2017-08-11T03:26:01Z")
@joebuhlig I just encountered the exact same issue in my native OSX dev environment (I even also have a new MacBook Pro 🙂 ).
Changing my imagemagick version fixed it for me.
1. Following the breadcrumbs, I noticed that imagemagick plays some kind of role in the naming of letter avatar files ([here](https://github.com/discourse/discourse/blob/master/lib/letter_avatar.rb)).
2. Discourse core is [still using imagemagick 6.9.x](https://github.com/discourse/discourse_docker/blob/89e850c7950e37066f62c25b35e4096f3df2630a/image/base/install-imagemagick#L22)
3. I was using imagemagick 7.0.x (current stable homebrew version).
4. I switched to the 6.9.x version homebrew kept (see above)
Now letter avatars work as normal. No annoying errors.
cc @sam
---
### Author:  [@joebuhlig](https://meta.discourse.org/u/joebuhlig)
#### Post date: [August 11, 2017, 12:22pm UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/6 "2017-08-11T12:22:56Z")
Got it! That makes a lot of sense. I never took the time to dig much further into it.
How did you install the older version of IM? It seems homebrew can’t find the 6.9.x formula when I run it.
EDIT: I hate it when I find the answer after asking the question.
I had to unlink it, install with a gist I found online, and then switch it. So:
1. `brew unlink imagemagick`
2. `brew install https://gist.githubusercontent.com/leesheppard/69a283ee4af484e2029809a0f5e09932/raw/88bc116b515a456a2e1bad476b6124d28ce2f6f6/imagemagick.rb`
3. `brew switch imagemagick 6.9.7-10`
---
### Author:  [@ryanerwin](https://meta.discourse.org/u/ryanerwin)
#### Post date: [May 11, 2018, 2:59am UTC](https://meta.discourse.org/t/starting-discourse-fails-with-bootstrap-error/65213/7 "2018-05-11T02:59:29Z")
For anyone else who runs into this same issue on Arch, the current imagemagick6 release will work, but imagemagick 7.x (current) still isn’t compatible… Specifically:
```plaintext
pacman -R imagemagick
pacman -S imagemagick6
```
Restart your rails server and all will be working fine.