protocol mismatch when creating etherchannel on tengigabitethernet 4510

[Dragomir]

I am getting a protocol mismatch when adding an interface into a port channel on a 4510 tengigabit port

any idea?

[Reza Sharifi]

Try deleting and rebuilding the PO again.

Config t

no po1

int te1/4

channel-group 1 mode active

int te1/x

channel-group 1 mode active

int po1

no sh

HTH

[pwwiddicombe]

What have you got already in the existing port channel; and what kind of SFP  have you got in Te 1/4?