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NoMethodError: undefined method `start_with?' for nil:NilClass

See original GitHub issue

NoMethodError: undefined method `start_with?’ for nil:NilClass

My setup:

ruby 2.4.2p198
rails-5.1.6
uglifier-4.1.11
therubyracer-0.12.3

Error raised during deployment. Recently I’ve added @ckeditor/ckeditor5-build-classic npm package which contains ES6 syntax.

# also I've changed
config.assets.js_compressor = :uglifier
# to
config.assets.js_compressor = Uglifier.new(harmony: true)

Now I’m getting this error. Here is capistrano log

Reproduction:

Uglifier.compile(File.read("node_modules/@ckeditor/ckeditor5-build-classic/build/ckeditor.js"), harmony: true)
> NoMethodError: undefined method `start_with?' for nil:NilClass

Issue Analytics

State:
Created 5 years ago
Reactions:11
Comments:13

Top GitHub Comments

34reactions

phlcastrocommented, Aug 3, 2018

Using the options bellow did the tricky to me. No idea why though ¯\(°_o)/¯

Uglifier.new(harmony: true, compress: { unused: false })

3reactions

gasicommented, Dec 16, 2019

FWIW, this is fixed in latest Uglifier 4.2.0 Gem:

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