generate run error

[yonat]

when running generate I get the following error:

$ xcode-build-times generate
[CHART] Will copy chart to /Users/-deleted-details-
/Library/Ruby/Gems/2.3.0/gems/xcode-build-times-0.1.1/lib/xcode-build-times.rb:107:in `generate_events_js': uninitialized constant XcodeBuildTimer::FileUtils (NameError)
Did you mean?  FileTest
	from /Library/Ruby/Gems/2.3.0/gems/xcode-build-times-0.1.1/bin/xcode-build-times:33:in `<top (required)>'
	from /usr/local/bin/xcode-build-times:22:in `load'
	from /usr/local/bin/xcode-build-times:22:in `<main>'

[serkrapiv]

Got same problem trying to provide path to events file

[garynewby]

Add 'require 'fileutils' to top of xcode-build-times.rb.