Unregister-Event : Cannot bind argument to parameter 'SourceIdentifier' because it is null.
At _PATH_REDACTED_\StopWatching.ps1:1 char:18
+ Unregister-Event $changed.Id
+                  ~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Unregister-Event], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.UnregisterEventCommand

Unregister-Event : Cannot bind argument to parameter 'SourceIdentifier' because it is null.
At _PATH_REDACTED_\StopWatching.ps1:2 char:18
+ Unregister-Event $created.Id
+                  ~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Unregister-Event], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.UnregisterEventCommand

Unregister-Event : Cannot bind argument to parameter 'SourceIdentifier' because it is null.
At _PATH_REDACTED_\StopWatching.ps1:3 char:18
+ Unregister-Event $deleted.Id
+                  ~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Unregister-Event], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.UnregisterEventCommand

Unregister-Event : Cannot bind argument to parameter 'SourceIdentifier' because it is null.
At _PATH_REDACTED_\StopWatching.ps1:4 char:18
+ Unregister-Event $renamed.Id
+                  ~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Unregister-Event], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.UnregisterEventCommand