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Template error: Can't bind to 'ngIf' since it isn't a known property of 'h1/ng-container/div'. #32597
Description
🐞 bug report
Affected Package
I guess it's the @angular-devkit/build-angularIs this a regression?
Yes, the previous version in which this bug was not present was: I guess somewhat around `8.1` or `8.2`Description
If I use structural directives (at least *ngIf and I also got this with the forms module) combined with ivy and ng server (yarn start) the app works (so it's not an issue with CommonModule not being imported or similar). Then you need to change a thing in the template (just add text somewhere) and when ng serve reloads then it can't find the directive. This get resolved again if you restart ng serve
🔬 Minimal Reproduction
https://github.com/cromefire/ngIf-issue
🔥 Exception or Error
Template error: Can't bind to 'ngIf' since it isn't a known property of 'h1'.
or
Template error: Can't bind to 'ngIf' since it isn't a known property of 'ng-container'.
or
Template error: Can't bind to 'ngIf' since it isn't a known property of 'div'.
🌍 Your Environment
Angular Version:
Angular CLI: 8.3.3
Node: 12.10.0
OS: linux x64
Angular: 8.2.5
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Package Version
-----------------------------------------------------------
@angular-devkit/architect 0.803.3
@angular-devkit/build-angular 0.803.3
@angular-devkit/build-optimizer 0.803.3
@angular-devkit/build-webpack 0.803.3
@angular-devkit/core 8.3.3
@angular-devkit/schematics 8.3.3
@angular/cli 8.3.3
@ngtools/webpack 8.3.3
@schematics/angular 8.3.3
@schematics/update 0.803.3
rxjs 6.4.0
typescript 3.5.3
webpack 4.39.2
Anything else relevant?
Important:
ivyng serve
Activity
JoostK commentedon Sep 11, 2019
Hi @cromefire, thanks for testing Ivy!
This looks like a duplicate of #32217, which has been fixed in #31932. For Ivy testing, please use the latest
9.0.0-next.5preview release as any fixes related to Ivy are not backported into 8.x. If you experience other issues using the9.0preview, feel free to open new issue.cromefire commentedon Sep 11, 2019
Do
componentsalready have support for9.0?JoostK commentedon Sep 11, 2019
@cromefire Not officially according to its
peerDependencies, but it does work. In fact, the Angular framework repo runs the testcases from thecomponentsrepo for each commit/PR, and vice versa does thecomponentsrepo run against a nightly of Angular (therefore the 9.0 previews).angular-automatic-lock-bot commentedon Oct 12, 2019
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