I couldn’t create new assignment this message comes on display, it runs/creates large number of assignments i didn’t order.
Other assignment import process is running. Only one assignment import process at a time is allowed. Wait until the process is finished and then upload a new sample file. Follow the link if you want to get more detailed progress information about the other import process.
[Go to running assignment import process]
Importing (411867 of 1046861)
411867 assignments created