Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js" #1208

hoogw · 2020-12-29T16:42:15Z

I got this warning when build, using "jsoneditor": "^9.1.6",

                 Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js"

full code:

                   parcel build --no-minify --no-cache --public-url ./ arcgis/*.html

                 ⚠️  Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js".
                 ⚠️  Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js".
                 ✨  Built in 8.14s.

The text was updated successfully, but these errors were encountered:

josdejong · 2020-12-30T10:13:32Z

How can I reproduce this issue?

hoogw · 2020-12-31T15:12:41Z

how to reproduce issue:

                          npm init

                          npm install jsoneditor

I use parcel.js to bundle. install parcel.js by:

                          npm install --save-dev parcel-bundler

create a simple html, js file.
in js file, I will import jsoneditor as:

                         // jsoneditor
                            import 'jsoneditor/dist/jsoneditor.css';   // do not forget CSS !
                            import JSONEditor from "jsoneditor";

Then, run:

                 parcel build --no-minify --no-cache --public-url ./    *.html

Then you will see warning

                      Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js".
             ⚠️  Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js".
             ✨  Built in 8.14s.

This is my package.json, you could have yours,

                                                 {
                 "name": "ol2",                          
                 "version": "1.0.0",
                 "description": "",
                 "main": "index.js",
                        "scripts": {
                          "test": "echo \"Error: no test specified\" && exit 1",
                          "start": "parcel arcgis/*.html",
                          "build": "parcel build --no-minify --no-cache --public-url ./ arcgis/*.html"
                        },
                        "author": "",
                        "license": "ISC",
                        "dependencies": {
                          "@mdi/font": "^5.8.55",
                          "jquery": "^3.5.1",
                          "json": "^10.0.0",
                         "jsoneditor": "^9.1.6",
                         "ol": "^6.4.3",
                          "ol-layerswitcher": "^3.8.3",
                          "ol-mapbox-style": "^6.3.0",
                          "proj4": "^2.6.3",
                          "terraformer": "^1.0.12"
                        },
                        "devDependencies": {
                         "parcel-bundler": "^1.12.4"
                        }
                      }

josdejong · 2021-01-01T13:36:03Z

I managed to reproduce the issue by following your steps and creating:

file issue_1208.html:

<html>
  <head>
    <script src="issue_1208.js"></script>
  </head>
  <body>
    
  </body>
</html>

and file issue_1208.js

// jsoneditor
import 'jsoneditor/dist/jsoneditor.css';   // do not forget CSS !
import JSONEditor from "jsoneditor";

Anyone able to look into why Parcel outputs this warning about the source map?

Nikki1993 · 2021-02-08T13:10:08Z

It's not just parcel but webpack as well. I am trying to debug an issue and plugging in source-map-loader revealed this

WARNING in ../node_modules/jsoneditor/dist/jsoneditor.min.js
Module Warning (from ../node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from '[redacted]/client/node_modules/jsoneditor/dist/0' file: Error: ENOENT: no such file or directory, open '[redacted]/client/node_modules/jsoneditor/dist/0'

josdejong · 2021-02-08T19:43:20Z

Thanks for the update @Nikki1993 , that means this is probably not a Parcel specific issue but something generic being wrong with the source map of jsoneditor.

erichiller · 2021-06-17T18:34:51Z

Same issue here, and I am using webpack, not parcel.

Error is:

WARNING in ../node_modules/jsoneditor/dist/jsoneditor.min.js
Module Warning (from ../node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from 'node_modules\jsoneditor\dist\0' file: Error: ENOENT: no such file or directory, open 'node_modules\jsoneditor\dist\0'
 @ ./src/components/Generic/JsonEditor.tsx 20:0-36 45:33-43
 @ ./src/components/Generic/ObjectTable.tsx 4:0-55 9:28-51
 @ ./src/config/routes.tsx 10:37-80
 @ ./src/App.tsx 4:0-63 19:32-46 20:81-97 21:77-93
 @ ./src/index.tsx 4:0-24 5:27-30

erichiller · 2021-06-26T16:18:19Z

@josdejong

Looks like all that has to be done is to change the main field in your package.json to ./dist/jsoneditor.js

See my fix

josdejong · 2021-06-30T06:27:17Z

Looks like all that has to be done is to change the main field in your package.json to ./dist/jsoneditor.js

hm, yeah not using the minified version (with source map) but the non-minified version will indeed work around the issue, though it doesn't really solve the issue of course.

ahmedbecirevic · 2022-09-29T08:40:24Z

Any updates with this issue, I still have it in the console, with create-react-app project, React v18

josdejong · 2022-09-29T10:31:01Z

No news. Help solving this would be very welcome.

sreenaths · 2023-01-17T08:42:07Z

I was able to prevent the warning by importing from index in my typescript project!

import JSONEditor from "jsoneditor/index";

josdejong · 2023-01-17T08:47:29Z

🤔 that is interesting.

~~Thinking aloud here: maybe defining the exports object in package.json will solve this, let me give that a try.~~

EDIT: ah, of course: the index.js file is pointing to the non-minified bundle. The issue is in the minified bundle. So, yeah, using "jsoneditor/index" is a workaround for this.

josdejong · 2023-02-20T08:51:14Z

This is fixed now in v9.10.0 via #1499

josdejong added bug help wanted labels Jan 1, 2021

josdejong mentioned this issue Feb 17, 2023

Fix source map paths in Uglify configuration #1499

Merged

josdejong closed this as completed Feb 20, 2023

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Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js" #1208

Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js" #1208

hoogw commented Dec 29, 2020

josdejong commented Dec 30, 2020

hoogw commented Dec 31, 2020

josdejong commented Jan 1, 2021

Nikki1993 commented Feb 8, 2021

josdejong commented Feb 8, 2021

erichiller commented Jun 17, 2021 •

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erichiller commented Jun 26, 2021

josdejong commented Jun 30, 2021

ahmedbecirevic commented Sep 29, 2022

josdejong commented Sep 29, 2022

sreenaths commented Jan 17, 2023 •

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josdejong commented Jan 17, 2023 •

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josdejong commented Feb 20, 2023

Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js" #1208

Could not load source file "0" in source map of "../node_modules/jsoneditor/dist/jsoneditor.min.js" #1208

Comments

hoogw commented Dec 29, 2020

josdejong commented Dec 30, 2020

hoogw commented Dec 31, 2020

josdejong commented Jan 1, 2021

Nikki1993 commented Feb 8, 2021

josdejong commented Feb 8, 2021

erichiller commented Jun 17, 2021 • edited Loading

erichiller commented Jun 26, 2021

josdejong commented Jun 30, 2021

ahmedbecirevic commented Sep 29, 2022

josdejong commented Sep 29, 2022

sreenaths commented Jan 17, 2023 • edited Loading

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erichiller commented Jun 17, 2021 •

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