Sorted:

Can't install ffi 1.9.0 via rvm bundle install – OSX 10.8.4-Collection of common programming errors

Get a ton of errors when using bundle install-Collection of common programming errors

Bundler skips eventmachine gem on Win7x64-Collection of common programming errors

ReportViewer control (v10) and height-Collection of common programming errors

How can I get mysql2 to install?-Collection of common programming errors

Spring.NET – Object reference not set to an instance of an object-Collection of common programming errors

Error when installing libv8 3.11.8.3-Collection of common programming errors

Report Viewer – Object With Nested List Objects-Collection of common programming errors

Ruby: problem installing EventMachine under Windows 7-Collection of common programming errors

Report Viewer Control in Win Forms throws 'Object reference not set to an instance of an on object' error-Collection of common programming errors