[xcrysden] how to display the output file of pwscf

[sun jason]

Dear all,

I've install xcrysden and it can display the input file of pwscf properly. 
but I can not use it to open a output file of pwscf. neither the output 
file of scf calculation and relax calculation. the error message said:

error: while executing exec.sh
/home/sun/XCrysden-1.4.1bin-static/script/pwo2xsf.sh -- optcoor
/home/sun/esppresso/examples/example06/results/alas.scf.out  > pwo2xsf.xsf

what's wrong with it?

any suggestions would be much appreciated.

Best regards,
============================================== 
Jian SUN 
Physics Dept. of Nanjing University 
National Lab. of Solid State Microstructures 
22 Hankou Road, Gulou District 
Nanjing, Jiangsu Province 
210093 
China 
==============================================