Getting NullReferenceException in Flowchart.its starting of the workflow.

Hi @sowmya

This error occurs because you have a variable that is not initialized(as is say in the error message).
It would be better if you would upload your workflow here in order for the people on forum to help you better.

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Main.xaml (43.6 KB)

I think that this problem is caused by default values for directory and lineNumber variables. These default values are assigned at beginning of Flowchart when the dtConfig variable is not yet set.

yes its working fine:slight_smile:)
Thank you