Reproduction link

https://github.com/ng-alain/delon/blob/master/packages/form/widgets/segmented/ng-package.json

Steps to reproduce

1. register withColorWidget in json-schema.
2. npm start in terminal
3. open borwser dev tool,you will get a [does not provide an export named 'withColorWidget'] error

What is expected?

register withColorWidget rightly

What is actually happening?

the ng-package.json file in widget segmented folder is wrong，it's flatModuleFile shoud be "widget-segmented". not "widgets-color".like this:
{
"lib": {
"flatModuleFile": "widgets-sigment",
"entryFile": "index.ts"
}
}