Compiling error in Textmate 2

[Sven]

I have the following gems installed and am using Textmate 2:

SASS 3.3.3

Compass 0.12.4

Ruby 2.1.0p0 (2013-12-25 revision 44422)

When I try and save an .scss file, I repeatedly get the following error:

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- compass (LoadError) from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require' from /Users/spencermillard/Library/Application Support/TextMate/Pristine Copy/Bundles/SASS.tmbundle/Support/lib/env.rb:4:in `' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require' from /tmp/temp_textmate.imxAqa:3:in `'

I have absolutely no idea why this is happening, so any advice is welcome.