‘System.Reflection.TargetInvocationException’ in Speech recognition

17 Sep

The following reason may cause the captioned exception, i.e. ‘System.Reflection.TargetInvocationException’. Try and see if:

  • A string, esp. the recognized word is empty or null before using it:

    If this exception occurs in the same thread as the main thread, the exception will explicitly pop up and note you of this, but in the speech recognition, when you run _SRE.RecognizeAsync(RecognizeMode.Multiple); the recognition will run in a seperate thread, and in this execution, the ‘System.Reflection.TargetInvocationException’ will be thrown.

1 Comment

Posted by on September 17, 2008 in CAD


One response to “‘System.Reflection.TargetInvocationException’ in Speech recognition

  1. xinyustudio

    September 30, 2008 at 4:17 pm

    Another most possible reason is perhaps due to the cross thread calling of GUI update, a simple resolution is to disable such exceptions in debug mode:

    #if DEBUG System.Windows.Forms.Form.CheckForIllegalCrossThreadCalls = false;


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