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[CieloVistaSoftware]

🚀 feature request

Relevant Package

This feature request is for @angular/cli or compiler

Description

We had issued ng serve which was watching for changes. On a dependency change to an internal angular library, which compiled ok... We received this message above.

Going back to the terminal window we saw this:

PS C:\Users\name\source\repos\J\mglib> ng serve demo

chunk {main} main.js, main.js.map (main) 2.06 kB [initial] [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 169 kB [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 6.15 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 14 kB [initial] [rendered]
chunk {vendor} vendor.js, vendor.js.map (vendor) 343 kB [initial] [rendered]
Date: 2020-06-24T13:51:46.683Z - Hash: 2091c10c953f6c16c475 - Time: 6335ms

 // this error was our fault, shouldn't this shown in the served page?
 ERROR in The target entry-point "lib" has missing dependencies:
 - projects/MG/src/mg/services/signalr.service

** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **

Clearly our fault but....

Here's the prod compile of our library.

File change detected. Starting incremental compilation...

------------------------------------------------------------------------------
Building entry point 'lib'
------------------------------------------------------------------------------
Compiling TypeScript sources through ngc
Bundling to FESM2015
WARNING: 'OnInit' and 'AfterViewInit' are imported from external module '@angular/core' but never used
Bundling to FESM5
WARNING: '__read' is imported from external module 'tslib' but never used
WARNING: 'OnInit' and 'AfterViewInit' are imported from external module '@angular/core' but never used
Bundling to UMD
WARNING: No name was provided for external module '@fortawesome/free-solid-svg-icons' in output.globals – guessing 'freeSolidSvgIcons'dSvgIcons'                                                                                                                  gularSvgIcons'
WARNING: No name was provided for external module '@fortawesome/free-regular-svg-icons' in output.globals – guessing 'freeRe 'signalr_service'gularSvgIcons'                                                                                                              ntawesome'
WARNING: No name was provided for external module 'projects/MG/src/mg/services/signalr.service' in output.globals – guessing 'signalr_service'
WARNING: No name was provided for external module '@fortawesome/angular-fontawesome' in output.globals – guessing 'angularFontawesome'
WARNING: No name was provided for external module '@aspnet/signalr' in output.globals – guessing 'signalr'
Minifying UMD bundle
Writing package metadata
Built lib

------------------------------------------------------------------------------
Built Angular Package
 - from: C:\Users\myName\source\repos\John-Peters\mglib\projects\MG
 - to:   C:\Users\myName\source\repos\John-Peters\mglib\dist\lib
------------------------------------------------------------------------------

Compilation complete. Watching for file changes...

Describe the solution you'd like

• It's ok to serve the page, but show the error instead of cannot get.
• We don't understand how ng build --prod did not catch this error.

Describe alternatives you've considered

Fix the library dependeny issue.

[alan-agius4]

Duplicate of #17487

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