Embarking on creating my very own Angular library, I took the first step by adding a service without any issues.
The challenge arose when I decided to move a constant to a file named tokens.ts for the service to reference. Following this change, the build process failed and displayed the following error message:
------------------------------------------------------------------------------
Building entry point 'mylib'
------------------------------------------------------------------------------
√ Compiling with Angular sources in Ivy partial compilation mode.
× Generating FESM2020
'SOME_VALUE' is not exported by dist\mylib\esm2020\lib\tokens.mjs, imported by dist\mylib\esm2020\lib\services\mysuperservice.service.mjs
Process finished with exit code 1
The contents of tokens.ts:
export declare const SOME_VALUE: ...
The aforementioned service:
import {SOME_VALUE} from "../tokens";
@Injectable({
providedIn: 'root',
})
export class MySuperService{
//...
My tsconfig.lib.json configuration:
{
"extends": "../../tsconfig.json",
"compilerOptions": {
"outDir": './../../out-tsc/lib';
},
"exclude": [
"src/test.ts",
"**/*.spec.ts"
]
}
Here's how my project tree looks like:
https://i.stack.imgur.com/Ky861.png
In the midst of deciphering this issue, it occurred to me that it might be related to my TypeScript compiler options, particularly since .mjs files are referenced in the error message. However, pinpointing the root cause has proven to be quite a challenge.
If you have any insights or suggestions, I would greatly appreciate your help!