[Pw_forum] incompatible nr1x or nr2x

[Jaret Qi]

Dear QE users,I am trying to get charge density plot for an interface btw a semiconductor and semi-metallic. but i'm getting this error: 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     Error in routine chdens (1):     incompatible nr1x or nr2x %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
I know it is due the mismatch btw the interface structures. but this could not fix, i mean i can't make their lattice parameter same. Any suggestions?
Jaret,ASU
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