ID:234040 Differential pair nodes need to have the same I/O standard. Do you want to change the I/O standard of <name> to <name>?
CAUSE: Differential pair nodes need to have the same I/O standard; however, the differential pair node has different I/O standard with the selected node. The Quartus Prime software is asking if you want to change the I/O standard.
ACTION: You can change the pair node I/O standard, or you can specify another pair node.