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Andrew Lauer Barinov
Asked: 2011-08-27 14:46:54 +0800 CST

Trouble installing Heroku taps gem using RVM

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I tried to install the taps gem on my rvm, but got the following result:

larson:~ larson$ rvm gem install taps
Successfully installed taps-0.3.23
1 gem installed
Installing ri documentation for taps-0.3.23...
Installing RDoc documentation for taps-0.3.23...
larson:~ larson$ ruby -S gem which taps
ERROR:  Can't find ruby library file or shared library taps

The strange thing is that taps still appears in my gem list. What does this error mean and will it prevent me from using Heroku's db:push commands?

ruby heroku rubygems rvm

1 Answers

  1. Best Answer

    gem which find the location of a library file in gems. There is no taps.rb in /usr/local/lib/ruby/gems/1.8/gems/taps-0.3.23/lib/, so you got the above message:

    # ls -l /usr/local/lib/ruby/gems/1.8/gems/taps-0.3.23/lib/
total 8
drwxr-xr-x 2 root root 4096 Aug 27 10:31 taps
drwxr-xr-x 2 root root 4096 Aug 27 10:31 vendor

    Another example with puppet:

    # ls -l /usr/local/lib/ruby/gems/1.8/gems/puppet-2.7.1/lib/
total 8
drwxr-xr-x 30 root root 4096 Jul 18 16:41 puppet
-rw-rw-r--  1 root root 3781 Jul 18 16:41 puppet.rb

# gem which puppet
/usr/local/lib/ruby/gems/1.8/gems/puppet-2.7.1/lib/puppet

    So what command would you use to verify that the taps (or puppet) gem is present and working?

    gem list taps

*** LOCAL GEMS ***

taps (0.3.23)

    and:

    taps -h
Options
=======
server    Start a taps database import/export server
pull      Pull a database from a taps server
push      Push a database to a taps server
version   Taps version

Add '-h' to any command to see their usage
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