Invoke method : Value cannot be null

Help
1

Hello,

I am getting following error message when I try to use external DLL.

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One more screen with more information of Variables.

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I have created a nuget package and then installed that package using package manager in UIPath.
here is the sample code in the DLL. Please help me to fix it.

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I don’t know what is wrong here.

Regards,
Prashant Trambake

2

Add an assign - the method call is fine, your myclass1 variable is not initialized
Class1 myclass1 = new Class1()

2 Likes
3

Thank you. Let me try. Will let you know.

4

Yey…!!! Thank you… That was easy. :slight_smile:

Here it is what I have done.

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