Error encountered - consumer.computeColumnSpans is not a function - in merge-map.js line 146

[mistergibson]

I'm submitting a bug report

Webpack Version:
4.42.1

Babel Core Version:
7.11.2

Babel Loader Version:
8.1.0

Please tell us about your environment:
Linux

Current behavior:
The following error is given when attempting to compile a large javascript file (9.2MB long and CANNOT be broken up) in electron-builder, which relies upon babel to process and load the source code. NOTE: "consumer.computeColumnSpans" is not even in the source code of gxg.js -- not even there.

ERROR in ./resources/gxg.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
TypeError: /home/mistergibson/Documents/Development/gxg-studio/resources/gxg.js: consumer.computeColumnSpans is not a function
at buildMappingData (/home/mistergibson/Documents/Development/gxg-studio/node_modules/@babel/core/lib/transformation/file/merge-map.js:146:12)
at mergeSourceMap (/home/mistergibson/Documents/Development/gxg-studio/node_modules/@babel/core/lib/transformation/file/merge-map.js:21:17)
at generateCode (/home/mistergibson/Documents/Development/gxg-studio/node_modules/@babel/core/lib/transformation/file/generate.js:74:39)
at run (/home/mistergibson/Documents/Development/gxg-studio/node_modules/@babel/core/lib/transformation/index.js:55:33)
at run.next ()
at Function.transform (/home/mistergibson/Documents/Development/gxg-studio/node_modules/@babel/core/lib/transform.js:27:41)
at transform.next ()
at step (/home/mistergibson/Documents/Development/gxg-studio/node_modules/gensync/index.js:254:32)
at gen.next (/home/mistergibson/Documents/Development/gxg-studio/node_modules/gensync/index.js:266:13)
at async.call.value (/home/mistergibson/Documents/Development/gxg-studio/node_modules/gensync/index.js:216:11)
@ ./src/main/index.js 48:12-45
@ multi ./src/main/index.js

Expected/desired behavior:
process the large javascript file and conclude.

• What is the expected behavior?
  process the large javascript file and conclude.

• What is the motivation / use case for changing the behavior?
  I need to compile my code? odd question.

[luoguoxiong]

I had a similar problem ~~~~~

[nicolo-ribaudo]

merge-map.js has been simplified, we don't use computeColumnSpans anymore: https://github.com/babel/babel/blob/main/packages/babel-core/src/transformation/file/merge-map.ts

[vasicvuk]

Hi @nicolo-ribaudo, Can you explain how should we use this version without calling computeColumnSpans. Latest version of npmjs is 7.18.10 and it still has this issue?