I am creating microblaze based project: with 256M Memory, UARTlite, 4 Leds & PModGPIO for JA & JB
[Place 30-58] IO placement is infeasible. Number of unplaced terminals (20) is greater than number of available sites (0).
The following are banks with available pins:
IO Group: 0 with : SioStd: LVCMOS18 VCCO = 1.8 Termination: 0 TermDir: In RangeId: 1 has only 0 sites available on device, but needs 20 sites.
Term: and jb_pin9_i
[Place 30-99] Placer failed with error: 'IO Clock Placer failed'
Please review all ERROR, CRITICAL WARNING, and WARNING messages during placement to understand the cause for failure.
[Common 17-69] Command failed: Placer could not place all instances
Board files in ....\arty-a7-100\E.0\ are dated August 30th 2018
MPS posts a similar query November 21st 2015 for the ARTY board
Solution: Digilent updated the board files.