AR# 13087: 4.1i Project Navigator - "ERROR: NgdBuild:25 - cannot both read and write file 'design.ngd'!"
AR# 13087
4.1i Project Navigator - "ERROR: NgdBuild:25 - cannot both read and write file 'design.ngd'!"
描述
General Description:
When I use the ABEL XST Verilog flow with a top-level schematic, NGDBuild fails and reports the following error:
"ERROR: NgdBuild:25 - cannot both read and write file "design.ngd"!"
解决方案
When the ABEL XST Verilog flow is used, the "ngdbuild.rsp" file is missing a line that points to the input design; therefore, NGDBuild perceives that the .ngd file is both the input and output file.
To work around this problem, switch to the ABEL XST VHDL flow, which writes out an accurate .rsp file.
This issue was resolved in the 4.2i version of the ISE software.