webpack-contrib/uglifyjs-webpack-plugin

ERROR in vendor.c8030bb7976be5202ebc.js from UglifyJs

fumblehool opened this issue · 5 comments

fumblehool commented
  • Operating System: Debian GNU/Linux 8.8 (jessie)
  • Node Version: v7.10.1
  • NPM Version: 4.2.0
  • webpack Version: 3.3.0
  • uglifyjs-webpack-plugin Version: 1.1.4

Expected Behavior

On running webpack --config config/webpack.prod.aot.js --progress --profile --bail It should build the dist files

Actual Behavior

Getting Error -

ERROR in vendor.c8030bb7976be5202ebc.js from UglifyJs
TypeError: Cannot read property '_walk' of null
    at AST_Dot.eval (eval at <anonymous> (/app/angular/node_modules/uglifyjs-webpack-plugin/node_modules/uglify-es/tools/node.js:1:1), <anonymous>:1112:28)
alexander-akait commented

@fumblehool problem in uglify-js, please create issue in their repo

alexander-akait commented

Also please create minimum reproducible test repo

fumblehool commented

@evilebottnawi Thanks for the quick reply! The issue was in uglifyjs-webpack-plugin.

vtni commented

@fumblehool How did you solved it?

fumblehool commented

@vtni I was trying to extend functionality of an older project. It used uglifyjs-webpack-plugin@1.1.4.
So I had to downgrade webpack to v3 and upgrade uglifyjs-webpack-plugin@1.1.4 to uglifyjs-webpack-plugin@1.3.0
As pointed out by @evilebottnawi , problem was in uglify-js. This problem is fixed in uglify-js@3.4.3