Why does Fitter fail without any details when a partition is set to Post-Fit?

This problem may be seen in the Quartus® II software versions 9.1 SP1 and later when you target a Stratix® IV GX device and you set the Netlist Type setting of a partition to Post-Fit.

The Fitter issues the following error:
Error: Can\'t fit design in device

If you select a HardCopy companion device, the Fitter also issues the following :
Error: Device migration enabled -- compilation may have failed due to additional constraints when migrating

A patch is available to fix this problem for the Quartus II software versions 9.1 SP1 and 9.1 SP2. Download and install Patch 1.67 for the Quartus II software version 9.1 SP1 or Patch 2.52 for the Quartus II software version 9.1 SP2 from the appropriate link below.

For the Quartus II software version 9.1 SP2:

• For Windows:
  • Download the Quartus II software version 9.1 SP2 Patch 2.62 for Windows (.exe)
  • Download the Readme for the Quartus II software version 9.1 SP2 Patch 2.62 for Windows (.txt)
• For Linux:
  • Download the Quartus II software version 9.2 SP2 Patch 2.62 for Linux (.tar)
  • Download the Readme for the Quartus II software version 9.1 SP2 Patch 2.62 for Linux (.txt)

For the Quartus II software version 9.1 SP1:

• For Windows:
  • Download the Quartus II software version 9.1 SP1 Patch 1.67 for Windows (.exe)
  • Download the Readme for the Quartus II software version 9.1 SP1 Patch 1.67 for Windows (.txt)
• For Linux:
  • Download the Quartus II software version 9.1 SP1 Patch 1.67 for Linux (.tar)
  • Download the Readme for the Quartus II software version 9.1 SP1 Patch 1.67 for Linux (.txt)

This problem is scheduled to be fixed in a future release of the Quartus II software.