UISAIAV1: UiPath Certified Professional Specialized AI Associate

The exception occurs because the dt_Reports DataTable variable is null at runtime — it was declared but never instantiated. To resolve this, an Assign activity must be placed before the Add Data Row activity to initialize the variable by creating a new instance of the DataTable object: dt_Reports = New System.Data.DataTable. This follows standard .NET object initialization syntax, where the variable name appears on the left side of the assignment and the object instantiation (using the New keyword with the correct type, System.Data.DataTable) appears on the right side. Once initialized, the DataTable object reference is valid, allowing the Add Data Row activity to successfully add a row without throwing a null reference exception.