quartus编译时报错

xjh1508121978

出现Error: Can't place  PLL "PLL:inst1|altpll:altpll_component|PLL_altpll:auto_generated|pll1" -- I/O pin CLOCK (port type INCLK of the PLL) is assigned to a location which is not connected to port type INCLK of any PLL on the device
Info: Fitter preparation operations ending: elapsed time is 00:00:01
Warning: Found invalid Fitter assignments. See the Ignored Assignments panel in the Fitter Compilation Report for more information.
Error: Can't fit design in device
Warning: Following 1 pins must use external clamping diodes.

Info: Pin DATA0 uses I/O standard 2.5 V at H2
Error: Quartus II 64-Bit Fitter was unsuccessful. 2 errors, 6 warnings

Error: Peak virtual memory: 390 megabytes

Error: Processing ended: Sun Sep 13 15:16:57 2015

Error: Elapsed time: 00:00:05

Error: Total cpu time (on all processors): 00:00:05
Error: Quartus II Full Compilation was unsuccessful. 4 errors, 61 warnings
求大神指导。。。