Rails: no such file to load -- rack/mini/profiler (LoadError)
Hi, I wanted to try MiniProfiler for Rails as I think it looks great.
I’m using ruby enterprise edition 1.8.7 with rvm and rails 3.0.9
I included in my gem file:
gem "rack-mini-profiler"
then I did:
=>:$ bundle install
then I did:
=>:$ rails server
and I got:
/Users/nemesis/.rvm/gems/ree-1.8.7-2012.02@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:74:in `require': no such file to load -- rack/mini/profiler (LoadError)
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:74:in `require'
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `each'
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `require'
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02@global/gems/bundler-1.1.4/lib/bundler.rb:119:in `require'
from /Users/nemesis/openwisp/geomonitoring/config/application.rb:7
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02/gems/railties-3.0.9/lib/rails/commands.rb:28:in `require'
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02/gems/railties-3.0.9/lib/rails/commands.rb:28
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02/gems/railties-3.0.9/lib/rails/commands.rb:27:in `tap'
from /Users/nemesis/.rvm/gems/ree-1.8.7-2012.02/gems/railties-3.0.9/lib/rails/commands.rb:27
from script/rails:6:in `require'
from script/rails:6
Any hint?
Thank you for this great gem.
- Created:11 months ago
Have not tested a 1.8.7, 3.0.9 combo.
Any chance you can you link to a repro on Github?
- Created:11 months ago
You meant repo or repro (what is a repro?) ?
This is the rails app I’m working on. Is Open Source. https://github.com/openwisp/OpenWISP-Geographic-Monitoring/tree/develop
I'am working on the develop branch.
Rack::Bug reports hundred of queries for each page so I wanted to use some other instrument to verify it.
Thanks a lot!
- Created:9 months ago
- Modified:9 months ago
Had the exact same problem a while ago; Ruby 1.9.3, Rails 3.2.6. Finally figured it out — when I was running “sudo bundle install”, for some weird reason, bundler was installing rack-mini-profiler in my gems directory with owner root, group root, mode 0660 on all the regular files. Hence, rack_mini_profiler.rb was unreadable, and bundler would silently fail when trying to load it.
(Let’s leave aside the whole “silently failing” issue for the moment — god, what a pain…)
Now, let’s not close this bug just yet — this is the only gem that I’ve ever had installed with bogus permissions, and it happens reliably, even after “gem uninstall"ing all versions of rack-mini-profiler and letting bundler install a fresh one. Any ideas why?
- Created:9 months ago
@Ryan, big thank you on that.
This was a side effect of me stripping x from a bunch of files. I just pushed a release that fixes this !!!
- Created:9 months ago
I was running into the migration error: no file found for ../tmp/miniprofiler
After digging a bit, I came across this thread. The patch to fix this error has not been merged. A quick fix is simply to create the directory in your app folder ../tmp/miniprofiler
After doing so, my migrations ran without incident.
Thanks again for this great tool — It has done wonders to help optimize my app!