Prevent repetition of errors during compiling in the ahead-of-time (AOT

I need assistance with optimizing my codebase in Angular 2 using angular-cli. When I run the command "ng build --prod", I encounter an error that is preventing the output of the dist folder. This error claims that there is a duplicate identifier in one of my components, even though I am confident that no such duplication exists. Unfortunately, since the ng.factory file is not being generated, I cannot effectively debug the issue. How can I convince the compiler that there are no duplicates and resolve this frustrating situation?

https://i.stack.imgur.com/ju0MY.png

If I comment out the template linking to this component, the "ng build --prod" command works properly. The offending component's template includes the following markup:

 <li class="listmathSubDomain" *ngFor="let subdomain of subjectVM.subDomainArray" [ngClass]="{'active': subdomain.Description == subjectVM.SelectedSubDomain}">

How does 'active' suddenly become identified as a duplicate only during Ahead-of-Time (AOT) compilation? Have I overlooked any vital concepts regarding AOT compilation?

angularangular-cliangular2-template

Answer №1

Upon further investigation, I discovered that this particular line was causing issues in AOT compilation.

[ngClass]="{'active': math.Name == subjectVM.SelectedMathDomain,'active': math.Title == subjectVM.SelectedDomain}"

In an attempt to resolve the problem, I made a modification:

[ngClass]="{'active': (math.Name == subjectVM.SelectedMathDomain || math.Title == subjectVM.SelectedDomain)}"

Interestingly enough, I'm left wondering why the initial line didn't cause any errors during JIT compilation.

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