mirror of
https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
7c6b740b97
the symbol `…` displays correctly in code-example blocks and in plain html text, it does however not work correctly for code espressed using backticks, fix such occurrences by replacing `…` with `...` PR Close #46123
31 lines
1.3 KiB
Markdown
31 lines
1.3 KiB
Markdown
@name Invalid Element
|
|
@category compiler
|
|
@shortDescription Unknown HTML element or component
|
|
|
|
@description
|
|
One or more elements cannot be resolved during compilation because the element is not defined by the HTML spec, or there is no component or directive with such element selector.
|
|
|
|
<div class="alert is-helpful">
|
|
|
|
This is the compiler equivalent of a common runtime error `NG0304: '${tagName}' is not a known element: ...`.
|
|
|
|
</div>
|
|
|
|
@debugging
|
|
Use the element name in the error to find the file(s) where the element is being used.
|
|
|
|
Check that the name and selector are correct.
|
|
|
|
Make sure that the component is correctly imported inside your NgModule or standalone component, by checking its presence in the `imports` field. If the component is declared in an NgModule (meaning that it is not standalone) make sure that it is exported correctly from it, by checking its presence in the `exports` field.
|
|
|
|
When using custom elements or web components, ensure that you add [`CUSTOM_ELEMENTS_SCHEMA`](api/core/CUSTOM_ELEMENTS_SCHEMA) to the application module.
|
|
|
|
If this does not resolve the error, check the imported libraries for any recent changes to the exports and properties you are using, and restart your server.
|
|
|
|
<!-- links -->
|
|
|
|
<!-- external links -->
|
|
|
|
<!-- end links -->
|
|
|
|
@reviewed 2022-02-28
|