angular-cn/aio/content/errors/NG8002.md

@name Invalid Attribute
@category compiler
@videoUrl https://www.youtube.com/embed/wfLkB3RsSJM
@shortDescription Unknown attribute or input

@description
An attribute or property cannot be resolved during compilation.

This error arises when attempting to bind to a property that does not exist. Any property binding must correspond to either:
* A native property on the HTML element, or
* An `@Input()` property of a component or directive applied to the element.

The runtime error for this is `NG0304: '${tagName}' is not a known element: …’`.

@debugging
Look at documentation for the specific [binding syntax](guide/binding-syntax) used. This is usually a typo or incorrect import. There may also be a missing direction with property selector ‘name’ or missing input.
-												docs: add guides for the top 10 errors (#40060)

add top 10 error guides
provide description and debugging for top errors

PR Close #40060

											
										
										
											2021-01-13 20:34:57 -05:00
+								@name Invalid Attribute
 								@category compiler
-												docs: add embedded videos to error guides (#40453)

add embedded youtube videos
provide visual debugging for top errors

PR Close #40453

											
										
										
											2021-01-20 00:17:25 -05:00
+								@videoUrl https://www.youtube.com/embed/wfLkB3RsSJM
-												docs: add guides for the top 10 errors (#40060)

add top 10 error guides
provide description and debugging for top errors

PR Close #40060

											
										
										
											2021-01-13 20:34:57 -05:00
+								@shortDescription Unknown attribute or input
 								@description
 								An attribute or property cannot be resolved during compilation.
 								This error arises when attempting to bind to a property that does not exist. Any property binding must correspond to either:
 								* A native property on the HTML element, or
 								* An `@Input()` property of a component or directive applied to the element.
 								The runtime error for this is `NG0304: '${tagName}' is not a known element: …’`.
 								@debugging
-												fix(docs-infra): use relative URLs for internal links on error pages (#40881)

Previously, some of the links on the error pages had URLs prefixed with
`https://angular.io/`. This caused them to be treated as external URLs,
which had the following downsides:
- Links would always point to `angular.io` instead of the same version
  as the error page (e.g. `next.angular.io` or `v11.angular.io`).
- Dgeni would not be able to check that the URLs are valid (i.e. point
  to existing pages).
- An external link icon would incorrectly be shown next to the links on
  `angular.io`.

This commit fixes the links to use relative URLs.

PR Close #40881

											
										
										
											2021-02-18 11:42:45 -05:00
+								Look at documentation for the specific [binding syntax](guide/binding-syntax) used. This is usually a typo or incorrect import. There may also be a missing direction with property selector ‘name’ or missing input.