Error: original.line and original.column are not numbers

[satazor]

Hello!

I was trying this minifier as an alternative to uglify in webpack but I'm hitting some issues with source maps:

Error: original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. If so, pass null for the original mapping instead of an object with empty or null values.
    at SourceMapGenerator_validateMapping [as _validateMapping] (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/node_modules/source-map/lib/source-map-generator.js:276:15)
    at SourceMapGenerator_addMapping [as addMapping] (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/node_modules/source-map/lib/source-map-generator.js:110:12)
    at /Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/node_modules/source-map/lib/source-map-generator.js:72:17
    at Array.forEach (<anonymous>)
    at BasicSourceMapConsumer.SourceMapConsumer_eachMapping [as eachMapping] (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/node_modules/source-map/lib/source-map-consumer.js:157:14)
    at Function.SourceMapGenerator_fromSourceMap [as fromSourceMap] (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/node_modules/source-map/lib/source-map-generator.js:48:24)
    at SourceMapSource.node (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/lib/SourceMapSource.js:32:35)
    at SourceMapSource.proto.sourceAndMap (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack-sources/lib/SourceAndMapMixin.js:30:18)
    at getTaskForFile (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack/lib/SourceMapDevToolPlugin.js:34:30)
    at files.forEach (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack/lib/SourceMapDevToolPlugin.js:127:20)
    at Array.forEach (<anonymous>)
    at compilation.hooks.afterOptimizeChunkAssets.tap (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack/lib/SourceMapDevToolPlugin.js:121:12)
    at SyncHook.eval [as call] (eval at create (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/tapable/lib/HookCodeFactory.js:17:12), <anonymous>:7:1)
    at SyncHook.lazyCompileHook [as _call] (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/tapable/lib/Hook.js:35:21)
    at hooks.optimizeChunkAssets.callAsync.err (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/webpack/lib/Compilation.js:947:42)
    at _err0 (eval at create (/Users/andrecruz/Work/moxy/moxy/react-with-moxy/node_modules/tapable/lib/HookCodeFactory.js:24:12), <anonymous>:11:1)

List of devtool values that are failing:

• nosources-source-map
• hidden-source-map
• inline-source-map
• source-map

If you want to reproduce the issue, clone https://github.com/moxystudio/react-with-moxy and https://github.com/moxystudio/react-with-moxy/blob/54f575f24db6b718639fcbcbe65033f1e33dd7d0/scripts/config/webpack/config-server.js#L230 to:

require("babel-minify-webpack-plugin")();

and then simply run $ npm run build.

[alexander-akait]

@satazor we have many problem with source maps and babel-minify #68, looks like another bug from babel-minify. I think will be good create his issue in babel-minify

[satazor]

I will be subscribing to that issue, thanks!

Closing this out.