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Flagsmith / flagsmith-js-client

Javascript Client for Flagsmith. Ship features with confidence using feature flags and remote config. Host yourself or use our hosted version at https://www.flagsmith.com/
https://www.flagsmith.com/
BSD 3-Clause "New" or "Revised" License
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Failed to parse source map from '****/angular-fetch.ts' file: Error: ENOENT: no such file or directory, open '/***/angular-fetch.ts' #239

Open vik-buchinski opened 1 month ago

vik-buchinski commented 1 month ago

The source maps starting from version 4.0.0 are broken. What I have in the logs:

` WARNING in ../../node_modules/flagsmith/index.js Module Warning (from ../../node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '/Users/vik.buchinski/Documents/github/utils/angular-fetch.ts' file: Error: ENOENT: no such file or directory, open '/Users/vik.buchinski/Documents/github/utils/angular-fetch.ts'

WARNING in ../../node_modules/flagsmith/index.js Module Warning (from ../../node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '/Users/vik.buchinski/Documents/github/utils/async-storage.ts' file: Error: ENOENT: no such file or directory, open '/Users/vik.buchinski/Documents/github/utils/async-storage.ts'

WARNING in ../../node_modules/flagsmith/index.js Module Warning (from ../../node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '/Users/vik.buchinski/Documents/github/utils/get-changes.ts' file: Error: ENOENT: no such file or directory, open '/Users/vik.buchinski/Documents/github/utils/get-changes.ts'

WARNING in ../../node_modules/flagsmith/index.js Module Warning (from ../../node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '/Users/vik.buchinski/Documents/github/utils/set-dynatrace-value.ts' file: Error: ENOENT: no such file or directory, open '/Users/vik.buchinski/Documents/github/utils/set-dynatrace-value.ts'

WARNING in ../../node_modules/flagsmith/react.js Module Warning (from ../../node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '/Users/vik.buchinski/Documents/github/utils/emitter.ts' file: Error: ENOENT: no such file or directory, open '/Users/vik.buchinski/Documents/github/utils/emitter.ts'

webpack compiled with 5 warnings (ee8a793b344e9aca) `

matthewelwell commented 1 month ago

Hi @vik-buchinski, please can you provide some more information here? Can you confirm exactly what steps you're taking to see these errors, and how they manifest? It seems like they are just warnings at the moment rather than errors so I'm interested to know what effect this is having.

vik-buchinski commented 1 month ago

@matthewelwell TBH, I didn't test the flagsmith after I saw these warnings. I just reverted to version 3 and warnings disappeared.

But anyway, there is some issue with sourcemaps in the flagsmith library version 4, it can't point from 1 file to another correctly, and instead goes to 2-3 levels higher than the root of the project to look for the .ts files that are located in the node-modules.

matthewelwell commented 1 month ago

Ok, thanks @vik-buchinski - we'll take a look into it.