Stratix IV - Error 176603: cannot place node <name> at <text> because it cannot...

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The Explantion is found in StratixIV HandBook, Chapter 5 "Clock Networks and PLLs in Stratix IV Devices", page 5-14:

"Clock Control Block

...

The mapping between the input clock pins, PLL counter outputs, and clock control block inputs is as follows:

- inclk[0] and inclk[1]- can be fed by any of the four dedicated clock pins on the same side of the stratix iv device

- inclk[2] - can be fed by PLL counters C0 and C2 from the two center PLLs on the same side of the Stratix IV device

- inclk[3] - can be fed by PLL counters C1 and C3 from the two center PLLs on the same side of the Stratix IV device

..."