The Invoke Method activity is throwing this error when passing the arguments

[shenyu (Mr. Wang)]

Hi,guys
I’m using the Invoke Method activity to add data to dictAB, but it’s throwing this error. What could be the reason? I also encountered the same error when using the Assign activity.

[Parvathy (PS Parvathy)]

Hi @shenyu

=> Initialize the dictAB variable first with below syntax:

new Dictionary(of String, List(of String))

=> After that in Invoke code under TargetObject give this:

dictAB.Add(rowB, rowAList)

Hope it helps!!

[shenyu (Mr. Wang)]

“I have already initialized the ‘dictAB’ object.”

[lrtetala (Lakshman Reddy)]

Hi @shenyu

Please check on this thread

How to add Key Value Pair in a Dictionary variable?

HI, Can you try either of Assign activity or InvokeMethod activity as the following? [image] Regards,

I hope it helps!!

[Shiva_Nikhil]

@shenyu

Just pass the values in the 2 argumnets

For arguments pass the value as rowA
For second arguments pass the value as rowB

Dont use expression in the arguments of invoke code

Cheers

[shenyu (Mr. Wang)]

Thank you very much, the issue has been resolved.