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class Thor
# Thor::Error is raised when it's caused by the user invoking the task and
# only errors that inherit from it are rescued.
#
# So, for example, if the developer declares a required argument after an
# option, it should raise an ::ArgumentError and not ::Thor::ArgumentError,
# because it was caused by the developer and not the "final user".
#
class Error < StandardError #:nodoc:
end
# Raised when a task was not found.
#
class UndefinedTaskError < Error #:nodoc:
end
# Raised when a task was found, but not invoked properly.
#
class InvocationError < Error #:nodoc:
end
class RequiredArgumentMissingError < InvocationError #:nodoc:
end
class MalformattedArgumentError < InvocationError #:nodoc:
end
end
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