I define a class:
class BuildLogger
@@build_logger=nil
def self.get_build_logger(file_name=nil)
if @@build_logger == nil ###this line will thrown an error
@@build_logger=Logger.new("build_logger")
@@build_logger.level = DEBUG
end
return @@build_logger
end
end
I invoke BuildLogger.get_build_logger in a controller. An error "Called
id for nil, which would mistakenly be 4 -- if you really wanted the id
of nil, use object_id" is always thrown on the "if" line. I have no idea
about this error. does anyone know this problem?
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