4 >AnalyzeTimingConstraints EXCEPTION:StaticFileParsers:Xml_Parser.c:744:1.34 - Xml_ParseException Description: line 0:An exception occurred! Type:RuntimeException, Message:The primary document entity could not be opened. Id=C:/DOCUME~1/admini/LOCALS~1/Temp/xil_2040_5.twx
ERROR:Timing:2581 - Xml Parser Exception code 0 line 0:An exception occurred! Type:RuntimeException, Message:The primary document entity could not be opened. Id=C:/DOCUME~1/admini/LOCALS~1/Temp/xil_2040_5.twx parsing file C:/DOCUME~1/admini/LOCALS~1/Temp/xil_2040_5.twx
请问这是什么意思，要如何解决？
二是在qst中写道：
1. Double-click the View/Edit Routed Design (FPGA Editor) process found in the Place & Route group of processes. Your implemented design opens in the FPGA Editor.
