ERROR:NgdBuild:604 - logical block 'chipscope_ila_0/chipscope_ila_0/i_chipscope_ila_0' with type 'chipscope_ila_0' could not be resolved. A pin name misspelling can cause this, a missing edif or ngc file, or the misspelling of a type name. Symbol 'chipscope_ila_0' is not supported in target 'spartan3a'.