Update package.json to fix deprecation of "./" #1461
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When executing 'ng build --prod' on Angular:
Generating browser application bundles (phase: building)...(node:1188) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at {{PROYECT_PATH}}\node_modules\css-loader\node_modules\postcss\package.json.
Update this package.json to use a subpath pattern like "./*".
(Use `node --trace-deprecation ...` to show where the warning was created)
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Merge this to fix the deprecation on new apps please! |
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This fix does not work on Node.js <= 14. See 8.1.5 and 8.1.6 releases. Can you give me a way to reproduce the problem? I do not see the warning in Node.js 15. Post a way to reproduce to this issue. |
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Angular 11 + Node v15 |
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Can you create GitHub project when I can reproduce the warning? |
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Here is a repo where the warning occurs. I use yarn package manager. |
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I can’t see this warning on Linux with the latest Node.js 15. state-hooks/state-hooks
➜ node -v
v15.3.0
state-hooks/state-hooks
➜ yarn build
yarn run v1.22.10
$ react-scripts build
Creating an optimized production build...
Compiled successfully.
File sizes after gzip:
41.74 KB build/static/js/2.13fac87d.chunk.js
1.4 KB build/static/js/3.e8d53c0a.chunk.js
1.17 KB build/static/js/runtime-main.d5304bec.js
725 B build/static/js/main.955628b8.chunk.js
546 B build/static/css/main.ab7136cd.chunk.css
The project was built assuming it is hosted at /.
You can control this with the homepage field in your package.json.
The build folder is ready to be deployed.
You may serve it with a static server:
yarn global add serve
serve -s build
Find out more about deployment here:
https://cra.link/deployment
Done in 6.10s.
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System information Edition: Windows 10 Home Single Language |
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Both Node.js 15.3 and 15.2.1 have the same output on Linux: Maybe this error happens only on Windows? @joypoddar can you open {
"name": "postcss",
"version": "8.1.10",
"description": "Tool for transforming styles with JS plugins",
"engines": {
"node": "^10 || ^12 || >=14"
},
"exports": {
".": {
"require": "./lib/postcss.js",
"import": "./lib/postcss.mjs",
"types": "./lib/postcss.d.ts"
"./": "./",
+ "./*": "./*"
},And then check the warning again. |
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I made the suggested change in the "exports": {
".": {
"require": "./lib/postcss.js",
"import": "./lib/postcss.mjs",
"types": "./lib/postcss.d.ts"
},
"./": "./",
"./*": "./*"
},Error Note |
I know I'm a couple of months late but here is what i did in the postcss json file: |
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When executing 'ng build --prod' on Angular:
Generating browser application bundles (phase: building)...(node:1188) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at {{PROYECT_PATH}}\node_modules\css-loader\node_modules\postcss\package.json.
Update this package.json to use a subpath pattern like "./*".
(Use
node --trace-deprecation ...to show where the warning was created)