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Angular’s NG05102: Unsupported event target means a listener was given a string global target Angular does not recognize. Use only 'window', 'document', or 'body' for global listeners; for a specific element, pass the DOM element itself to Renderer2.listen().
What does NG05102 mean?
NG05102 is a runtime error raised when Angular cannot resolve a string used as a global event target. It is about the target, not the event name. Angular recognizes only 'window', 'document', and 'body' as global target strings, as stated in the Angular NG05102 error guide. The Angular Component API also documents document:, window:, and body: as global prefixes for host event handling: Angular Component API.
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How do you fix NG05102?
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Find the event listener registration, especially a
@HostListenerdeclaration or a call toRenderer2.listen().Quick wins for a faster PC:
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Check the target string. Correct misspellings and replace unsupported values with one of the three supported global targets if the listener is meant to be global.
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If the listener belongs to a particular DOM element, pass that element itself to
Renderer2.listen()instead of using a made-up global target string.
Check the target in each listener style
@HostListener
For a global event, put the supported target prefix before the colon and event name. Angular’s error guide uses the misspelled 'windw:resize' as an example; the corrected form is:
@HostListener('window:resize')
onResize() {}Use document: or body: instead when that is the intended global target.
Renderer2.listen()
Inspect the first argument. If it is a string, it must be one of the recognized global targets. For an element-specific listener, pass the element reference’s native element, as in Angular’s example:
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this.renderer.listen(this.elementRef.nativeElement, 'click', handler);Choose a global target or a specific element
The right correction depends on where the event should be handled:
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Use
'window','document', or'body'when the listener is intended for that global target. -
Pass the actual DOM element when the listener is meant for one particular node.
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Angular’s NG05102 guide documents both approaches. Do not substitute another string, such as 'global', for an element reference.
NG05102 is not NG05101
NG05102 reports an unsupported event target. NG05101 is a separate error concerning the absence of an event manager plugin for an event; the target correction described here does not address that different problem. Angular lists both codes in its error guidance and NG05101 reference.
Version context
Angular’s error encyclopedia classifies NG05102 as a runtime error. The reviewed guidance does not establish when the code was first introduced or a complete range of affected Angular versions. The Component API identifies its documentation as v22.2.1; that API version alone does not establish the error’s version history.
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