There is a error path in package.json

[kevinywb]

"main": "lib/index.js",

There is not 'lib' in current src path. pls fix it, thks.

[kareemsalah227]

@kevinywb I ran into the same problem. I created a PR to fix it.

https://github.com/vishpat/ra-data-springboot-rest/pull/5

[jbournonville]

As a temporary fix you can use patch-package:

1. add patch-package dependencies to your project : yarn add patch-package postinstall-postinstall -D

2. add postinstall script to your package.json

"scripts": {
    ...
    "postinstall": "patch-package"
  },

3. modify the ra-data-springboot-rest package.json in node_modules folder :

{
    ...
    "main": "src/index.js",
    ...
}

4. run npx patch-package ra-data-springboot-rest --exclude command

And you should be good to go.