./vivado_sim.bash step fails

[harshgondaliya]

[6304144] ERROR: packet mismatch in packet 1 cycle 0
expected (tlast, tkeep, tdata) = (0, ffffffff, 010201010101c875004000000100320000450008020202020202030303030303)
actual (tlast, tkeep, tdata) = (0, ffffffff, 010201010101c875003f00000100320000450008020202020202030303030303)

On executing ./vivado_sim.bash step in P4-NetFPGA Workflow, it halts giving the aforementioned error. A mismatch of one bit is taking place.
How can I figure out the header field to which this mismatching bit belongs?

Any other way to resolve this error?