When I try to create or open projects in Project Navigator, it reports following error:
ERROR:Portability:152 - There is no readable fileset.txt filename in the list of MYXILINX or XILINX environment variables
ERROR: project version is 13.4, software version is .
ERROR: opening a project file with earlier release software is not supported.
The cause for this error is that there is no fileset.txt in the directory whichMYXILINX or XILINX environment variables point. Typically, this error would occur if a user had MYXILINX set, and had not copied the fileset.txt to the directory pointed to by the MYXILINX variable.
The fileset.txt should be in the ISE directory under the main install directory (e.g. C:\xilinx\13.4\ISE_DS\ISE\fileset.txt).
Copying a valid "fileset.txt" to the directory can resolve this issue.