fullTemplateTypeCheck: Cannot read property 'type' of null

Type of Issue

[x] Bug Report
[ ] Feature Request

Description

angular/angular#19906

angular/angular#24143

How To Reproduce

Issue happens when fullTemplateTypeCheck is enabled.

https://angular.io/guide/aot-compiler#fulltemplatetypecheck

Error: TypeError: Cannot read property 'type' of null
    at C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:25385:26
    at Array.forEach (native)
    at removeSummaryDuplicates (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:25384:11)
    at TemplateParser.tryParseHtml (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:24393:51)
    at TemplateParser.tryParse (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:24370:21)
    at TemplateParser.parse (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:24332:44)
    at AotCompiler._parseTemplate (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:29710:60)
    at AotCompiler._compileComponent (C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:29682:23)
    at C:\projects\material2\node_modules\@angular\compiler\bundles\compiler.umd.js:29528:55
    at Array.forEach (native)

The issue can be work-around’ed by setting fullTemplateTypeCheck: false

Expected Behaviour

Something, just anything better 😃

An error message … indicating where the problem in the code base.

Version Information

Angular CLI: 6.2.2
Node: 10.10.0
OS: linux x64
Angular: 6.1.7
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.6.8
@angular-devkit/build-angular     0.6.8
@angular-devkit/build-optimizer   0.6.8
@angular-devkit/core              0.8.2
@angular-devkit/schematics        0.8.2
@angular/cdk                      6.4.7
@angular/cli                      6.2.2
@ngtools/json-schema              1.1.0
@ngtools/webpack                  6.0.8
@schematics/angular               0.6.1
@schematics/update                0.8.2
ng-packagr                        4.1.1
rxjs                              6.3.2
typescript                        2.9.2
webpack                           4.8.3

[dherges]

I found one case where isSkipSelf of null relates to fullTemplateTypeCheck. Die to the error message I don’t know what piece of code causes the error. The error is supressed with fullTemplateTypeCheck: false

https://github.com/angular/angular/issues/20523

[Romanchuk]

Issue appeared when i changed npm to pnpm since pnpm uses symlinks in node_modules

Angular 10 ng-packagr 10