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M1.5i Virtex - Pin2ucf: An incorrect signal name is used in the .ucf data for Clock signals in Virtex devices.
Keywords: pin, lock, pin2ucf, Virtex
An incorrect signal name is used in the .ucf data for Clock signals in Virtex devices. (In a particular case, the signal clk was replaced by clk.PAD/PAD_SIG.)
You can work around this problem by manually changing the UCF data to the correct signal name.
This problem is fixed in the 2.1i release, scheduled for release in June, 1999.