[Wrf-users] Error in ext_pkg_open_for_write_begin.

[NZI MRSH]

hi i am using wrfv3.6
and want to run ./geogrid.exe but i receive the error :

[nazanin at localhost WPS]$ ./geogrid.exe 
Parsed 22 entries in GEOGRID.TBL
Processing domain 1 of 1
  Processing XLAT and XLONG
ERROR: Error in ext_pkg_open_for_write_begin.

can any one help me to solve it ?
by the way i don't know how to folloow a post , i just will wait for an email to my mailbox , tell me if i am wrong ;)
thank you 
 		 	   		  
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