Angular 7 : 'apx-chart' is not a known element · Issue #144 · apexcharts/ng-apexcharts · GitHub
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Not a known element when referencing an Angular Component from a library project using npm link · Issue #735 · angular/vscode-ng-language-service · GitHub
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angular常现问题合集：'XXX' is not a known element..._is not a known element:_93 Million Miles-的博客-CSDN博客
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Angular Component is not a known element when declared in the same module - Stack Overflow
md-list-item not a known element · Issue #5597 · angular/components · GitHub
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angular - ion-card is not a known element - Stack Overflow
angular - ion-card is not a known element - Stack Overflow
