The rvmrc located in '/x/y/z/path' could not be loaded, likely due to trust mechanisms. Please run 'rvm rvmrc {trust,untrust} '/x/y/z/path'' to continue, or set rvm_trust_rvmrcs_flag to 1. (RVM::ErrorLoadingRVMRC)

Environment:
Rails 3.2.6
ruby 1.9.3p194
Phusion Passenger version 3.0.13


Error message:
The rvmrc located in '/x/y/z/path'
could not be loaded, likely due to trust mechanisms. Please run 'rvm rvmrc
{trust,untrust} '/x/y/z/path'' to
continue, or set rvm_trust_rvmrcs_flag to 1. (RVM::ErrorLoadingRVMRC)

Problem:
Unknown, don't know what this is happening


Fix:
1. cd to /x/y/z/path and run `rvm rvmrc trust` on the command line, restart apache (this didn't work for me)
2. add rvm_trust_rvmrcs_flag=1 to ~/.rvmrc, restart apache (this worked for me)

You have already activated rack (gem name) 1.4.1(gem version), but your Gemfile requires rack (gem name) 1.3.6 (gem version)

Error message:
You have already activated rack (gem name) 1.4.1(gem version), but your Gemfile requires rack (gem name) 1.3.6 (gem version)

This could be any gem and any version, this is just my example using the rack gem.


Problem:
On my production machine I am using passenger 3.0.13 and it requires rack 1.4.1. In my Gemfile I am using Rails 3.1.3. Unfortunately rails 3.1.3 uses actionpack (and others) which depends on rack 1.3.6. I am not using rvm so rack 1.4.1 loads when passenger loads and therefore is loaded before rack 1.3.6. Since you can't have more than one version running, I get the error. Makes since, right?


Fix:
There are multiple possible fixes.
1. install rvm and add a gemset
2. (the one that I used) I decided to just upgrade rails to 3.2.6. This uses rack 1.4.1 and now all is happy :)
3. downgrade passenger to a version that uses rack 1.3.6

/path/to/.rvm/gems/ruby-1.9.3-p194@nameofgemset/gems/json-1.7.3/lib/json/ext/parser.bundle: [BUG] Segmentation fault ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.3.0], MBARI 0x6770, Ruby Enterprise Edition 2010.02

Error message:
/path/to/.rvm/gems/ruby-1.9.3-p194@nameofgemset/gems/json-1.7.3/lib/json/ext/parser.bundle: [BUG] Segmentation fault ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.3.0], MBARI 0x6770, Ruby Enterprise Edition 2010.02


Problem:
In my case the JSON gem has a compiled extension that might've been corrupted or rendered incompatible. I'm guessing this because of the error message in the passenger log file (error message above). This is possible for other gems as well not just JSON, basically any gem that requires a compiled extension.


Fix:
There are multiple possible fixes.
1. `gem install json`
2. (the one that worked for me) rebuild all gems with `gem pristine --all`


Good luck and hope this helps.

how to load passenger from apache with rvm and unique gem sets

So i kept getting errors that said ruby couldn't find a specific gem. Looking at the stack trace it shows the version of ruby you are using and the gemset. Of course you can create a custom gemset for each app you are working on, but the problem is that passenger doesn't read your custom gemset without extra configuration. So here is where I found the fix (read first answer):
http://stackoverflow.com/questions/5680341/how-to-load-passenger-from-apache-with-rvm-and-unique-gem-sets

Could not find multi_json in any sources

This just means that passenger is not reading the right ruby version or gemset or both.

I went through a lot of trouble to get this fixed. I ran rvm implode which removes rvm and all rubies. I then reinstalled it all. Reinstalled passenger gem and compiled it as well (passenger-install-apache-module).

I then created a .rvmrc file and said rvm use 1.9.3@mygemsetname. I changed directory to the app and ran bundle install. This is when I got the error again, so I thought a little more and just removed the rvmrc and ran bundle install again and that fixed it.

My apache conf file was:

   LoadModule passenger_module /Users/cgunnels/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/ext/apache2/mod_passenger.so
   PassengerRoot /Users/cgunnels/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12
   PassengerRuby /Users/cgunnels/.rvm/wrappers/ruby-1.9.3-p194/ruby

So I'm guessing that because I didn't specify a gemset in the apache conf in was reading the wrong gem list.

cannot load such file -- somerubyfile

Error message: 

cannot load such file -- config/init

Backtrace:
line 3: config.ru

So I was trying to load a sinatra app and I had this error keep coming up. I found out that all you have to do is add "./" to the front of the require like "./config/init" and all will load just fine.

Using:
ruby 1.9.3p194
Phusion Passenger version 3.0.12
sinatra (1.3.2)

Passenger encountered the following error: The application spawner server exited unexpectedly: Unexpected end-of-file detected.

For me I install the passenger gem with the --pre flag and that caused the problem. I just reinstalled it without the flag and this error went away for me.

I am using Mac OSX 10.7.3

undefined method `except' for "":String

Environment:

Ruby 1.9.2 via rvm, Running phusion passenger with apache and nginx (had to setup virtual host as proxy to get this to run multiple versions of ruby), Rails 3.0.8, Datamapper via the dm-rails gem. Mac OS X.

Error Message:

undefined method `except' for "":String

Problem:
For me this was in my database.yml file. Don't really know what the issue was, but I'm guessing an extra space or tab some where in the defaults section of the database.yml file.

Fix:
All I did was delete the defaults section and of course added the adapter, username, password, host, etc to each corresponding section in the database.yml file.

initialize: not in gzip format (Zlib::GzipFile::Error

Error message:

/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:49:in `initialize': not in gzip format (Zlib::GzipFile::Error
 

Problem:

Github may go down/timeout during deploy

Fix:

1. ssh into the server

2. cd to your current deploy folder

3. run bundle show 'name of gem' (shows the location of the gem install)

4. cd to the /gems/ path that is shown in the previous step

5.  run ls -l to see the latest install of the gem

6. run rm -rf on that directory (the latest gem install)

You have already activated rack 1.1.1, but your Gemfile requires rack 1.1.2. Consider using bundle exec.

Error message:

You have already activated rack 1.1.1, but your Gemfile requires rack 1.1.2. Consider using bundle exec.

Problem:
Passenger preloads gems from global gem list if you have passenger spawn method set. My problem is two fold, i was using passenger spawn method and i didn't have version 1.1.2 of rack installed globally.

Fix:

Remove the passenger spawn method from httpd.conf and restart apache

no such file to load -- ./config/../.bundle/environment

Error:
no such file to load -- ./config/../.bundle/environment

Description:
All this means is that i didn't run 'bundle install'

Fix:

Run  'bundle install' on the command line

Failed Shell Script When Running Pidof With Capistrano

Error: failed: "sh -c 'pidof /path/to/app'" on IP

Description: I was deploying my app using capistrano and I was trying to find the pid of a specific program running. I didn't know that pidof returned an exit code of 1 if no program was found with the requested name What this means is that capistrano was receiving a  bad shell command or a failed shell command.

Fix: run "[ `pidof /path/to/app` ] && (echo 'found') || (echo 'not found')", :via => run_method, :as => as

Exception EOFError in spawn manager (Unexpected end-of-file detected.) (process 27930)

ERROR:

/Users/user/.bundle/ruby/1.8/gems/hpricot-0.8.2/lib/fast_xs.bundle: [BUG] Segmentation fault
ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.3.0], MBARI 0x6770, Ruby Enterprise Edition 2010.02

*** Exception EOFError in spawn manager (Unexpected end-of-file detected.) (process 27930):
    from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/passenger-2.2.15/lib/phusion_passenger/utils.rb:374:in `unmarshal_and_raise_errors'
    from /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/passenger-2.2.15/lib/phusion_passenger/rack/application_spawner.rb:71:in `spawn_application'


DESCRIPTION:
This basically means that I installed a gem (hpricot) from bundler or another system app and now its not compatible with my version of ruby.

FIX:
run "sudo gem install gem-name" at command line, then run bundle unlock, bundle install, bundle pack if you are using bundler.

restart apache or whatever web server software you are using.

ArgumentError in Schools/school post variablesController#create

Error: wrong number of arguments (3 for 2)

Description: My create method only accepts 2 arguments. First, an auth_token. Second, a hash.

Fix: Send only two arguments, the auth_token and the hash.

JSON::ParserError in Schools/school post variablesController#create

ERROR: Memcached::ABadKeyWasProvidedOrCharactersOutOfRange at
/authorize

This means that there is a bad character in my memcache key,
or that I am not even sending a key.
In my case I have authorization token that are the memcache keys

FIX: Correct the bad character in the key or send the key.