Am stuck when trying to run the Main.xaml.
Am getting the error : “System error at initialization: The given key was not present in the dictionary. at Source: mscorlib”
hello @charlesmutunga
for the bad format, you can go through the @lakshman said.
as I remembered Assignment 1 does not have this type of workflow where we write data in excel.
and one thing if the above reply worked for you please mark as solution