Generated when trying to lookup a gem to indicate that the gem was found, but that it isn't usable on the current platform.

fetch and install read these and report them to the user to aid in figuring out why a gem couldn't be installed.

Methods
A
N
W
Attributes
[R] name

the name of the gem
[R] platforms

The platforms that are mismatched
[R] version

the version
Class Public methods
new(name, version)

Source: show | on GitHub 

# File lib/rubygems/errors.rb, line 46
def initialize(name, version)
  @name = name
  @version = version
  @platforms = []
end
Instance Public methods
add_platform(platform)

append a platform to the list of mismatched platforms.

Platforms are added via this instead of injected via the constructor so that we can loop over a list of mismatches and just add them rather than perform some kind of calculation mismatch summary before creation.

Source: show | on GitHub 

# File lib/rubygems/errors.rb, line 58
def add_platform(platform)
  @platforms << platform
end
wordy()

A wordy description of the error.

Source: show | on GitHub 

# File lib/rubygems/errors.rb, line 64
def wordy
  "Found %s (%s), but was for platform%s %s" %
    [@name,
     @version,
     @platforms.size == 1 ? '' : 's',
     @platforms.join(' ,')]
end