See if these two warnings have any effect

eeleader

See if these two warnings have any effect [Copy link]

WARNING:Cpld:310 - Cannot apply TIMESPEC TS1000 = PERIOD:PERIOD_sysq<12>.Q:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC. WARNING:Cpld:310 - Cannot apply TIMESPEC TS1018 = PERIOD:PERIOD_iow:0.000 nS because of one of the following: (a) a signal name was not found; (b) a signal was removed or renamed due to optimization; (c) there is no path between the FROM node and TO node in the TIMESPEC. This is a warning that appears after using ISE 11.1 Fit. I don't know if it means that there is something wrong with my layout, or if it has no effect?

americ

What are those lines of code?