ni.com is currently undergoing scheduled maintenance.

Some services may be unavailable at this time. Please contact us for help or try again later.

Indian LabVIEW Users Group (IndLUG)

cancel
Showing results for 
Search instead for 
Did you mean: 

System.MissingMethodException: Cannot create an instance of an interface while creating .net object

Solved!
Go to solution

While using zxing dll for reading barcode, i need to create an instance for barcode format list, but while doing so i m getting following error

 

"Error 1172 occurred at Invoke Node System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
Inner Exception: System.MissingMethodException: Cannot create an instance of an interface."

 

have attached the .dll and is there is any other way to create a .net object.

or any way to solve this problem?

 

Download All
0 Kudos
Message 1 of 3
(5,002 Views)

Hi @Rajhelboy 

 

You should use a .NET Constructor Node to create an instance.

 

image.png 

 

0 Kudos
Message 2 of 3
(4,970 Views)
Solution
Accepted by Rajhelboy

Unfortunately sir, this will not work as the object is not initialized, i have tried that earlier, for now i have modified the dll to give output for an initialized Barcode Format object.

0 Kudos
Message 3 of 3
(4,907 Views)