22 lines
1.1 KiB
Markdown
22 lines
1.1 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. If the component is from a different module or import, check that the component is exported from its origin module and imported into the correct `*.modules.ts` file, and declared in the imports list.
|
|
|
|
When using custom elements or web components, ensure that you add [`CUSTOM_ELEMENTS_SCHEMA`](api/core/CUSTOM_ELEMENTS_SCHEMA) to the app 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.
|