Warning when running npm install

[ThomasDevens]

Getting this warning after running npm install when running ngcc post-install (Angular v9.1.4, node v12.18.4)

Warning: Unable to fully load {path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js for source-map flattening: The "path" argument must be of type string. Received null

[piotrdz]

I've never used ngcc, so I am not sure why this would happen.

I suppose it has to do with what happens behind the scenes in ng-packagr. I'll see if changing ng-packagr version fixes it.

[ThomasDevens]

FWIW this is still happening as of the latest version (2.0.3) and only seems to happen when running npm install after the initial install (npm install @angular-slider/ngx-slider@latest) (snippet for reference)

PS {path_to_project}> npm install

> [email protected] postinstall {path_to_project}
> ngcc

Compiling @angular-slider/ngx-slider : fesm2015 as esm2015
Compiling @angular-slider/ngx-slider : fesm5 as esm5
Compiling @angular-slider/ngx-slider : esm2015 as esm2015
Compiling @angular-slider/ngx-slider : esm5 as esm5
Compiling @angular-slider/ngx-slider : main as umd
Warning: Unable to fully load {path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js for source-map flattening: The "path" argument must be of type string. Received null

[ThomasDevens]

Started to get errors and warnings after upgrading angular to 10/11/12:

Warning: Unable to fully load {path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js for source-map flattening: Cannot read property 'replace' of null
Warning: Unable to fully load {path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js for source-map flattening: Cannot read property 'replace' of null
Error: Error when flattening the source-map "{path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js.map" for "{path_to_project}/node_modules/@angular-slider/ngx-slider/bundles/angular-slider-ngx-slider.umd.js": TypeError: Cannot read property 'rawMap' of null

[ymoreau]

I have the same error logs as above with angular 13.

[roldengarm]

Yep, still the error Error when flattening the source-map on Angular 13. Is this being looked at?

[DzmVasileusky]

+1

[piotrdz]

Problems described here are no longer relevant in context of newer Angular versions. Therefore, closing this ticket.