Error Encyclopedia

Runtime errors

Code	Name
`NG0100`	Expression Changed After Checked
`NG0200`	Circular Dependency in DI
`NG0201`	No Provider Found
`NG0203`	`inject()` must be called from an injection context
`NG0204`	Invalid Injection Token
`NG0205`	Injector has already been destroyed
`NG0207`	EnvironmentProviders in wrong context
`NG0209`	Invalid multi provider
`NG0300`	Selector Collision
`NG0301`	Export Not Found
`NG0302`	Pipe Not Found
`NG0401`	Missing platform
`NG0403`	Bootstrapped NgModule doesn't specify which component to initialize
`NG0500`	Hydration Node Mismatch
`NG0501`	Hydration Missing Siblings
`NG0502`	Hydration Missing Node
`NG0503`	Hydration Unsupported Projection of DOM Nodes
`NG0504`	Skip hydration flag is applied to an invalid node
`NG0505`	No hydration info in server response
`NG0506`	NgZone remains unstable
`NG0507`	HTML content was altered after SSR
`NG0602`	Disallowed function call inside reactive context
`NG0750`	@defer dependencies failed to load
`NG0751`	@defer behavior when HMR is enabled
`NG0910`	Unsafe bindings on an iframe element
`NG0912`	Component ID generation collision
`NG0913`	Runtime Performance Warnings
`NG0919`	Circular Dependency Detected
`NG0950`	Required input is accessed before a value is set
`NG0951`	Child query result is required but no value is available
`NG0955`	Track expression resulted in duplicated keys for a given collection
`NG0956`	Tracking expression caused re-creation of the DOM structure
`NG01002`	Missing Control Value
`NG01101`	Wrong Async Validator Return Type
`NG01203`	Missing value accessor
`NG01902`	Orphan field in signal forms
`NG02200`	Missing Iterable Differ
`NG02800`	JSONP support in HttpClient configuration
`NG02802`	Headers not transferred by HttpTransferCache
`NG05000`	Hydration with unsupported Zone.js instance.
`NG05104`	Root element was not found.

Compiler errors

Code	Name
`NG1001`	Argument Not Literal
`NG2003`	Missing Token
`NG2009`	Invalid Shadow DOM selector
`NG3003`	Import Cycle Detected
`NG6100`	NgModule.id Set to module.id anti-pattern
`NG8001`	Invalid Element
`NG8002`	Invalid Attribute
`NG8003`	Missing Reference Target
`NG8023`	Multiple Components Match Same Element