Invalid CADRG and/or CIB extensions cause a Segmentation Violation

Description

When opening a project with CADRG and/or CIB extensions, ArcView returns the error: "Segmentation Violation"

Cause

When the CADRG and/or the CIB extensions are turned on, and any images referenced by the project have been moved, renamed, or deleted, the CADRG and CIB extensions cause a segmentation violation.

Solution or Workaround

1. Open the Project in WordPad
   
   

   Warning:
   Make a copy of the damaged .apr file under a different name. This backup copy may be needed to revert to if some of the edits do not work. 

   
   
2. Use the Find option to search for the text "CADRG". You will find two instances of the extension. One in the dependency line . . .
   
   

   Dependencies:
   	"$AVEXT/adrg.avx\n$AVEXT/cadrg.avx\n$AVEXT/smap.avx
   \n$AVEXT/arcpress.avx\n$AVEXT/spatial.avx\n"

   
   and one in a path object.
   
   

   (FN.9060
   	Path:	"$AVEXT/cadrg.avx"
   )

   
   
3. Write down the number of the path object (i.e. 9060)
   
   

   Note:
   In the following steps you will uses the find tool to search the file for references to this object.

   
   
4. Delete the extension object from the dependency list
   
   Before:
   
   

           Dependencies:	9058
   	Dependencies:	9059
   	Dependencies:	9060	
   	Dependencies:	9061
   	Dependencies:	9062
   	Dependencies:	9063
   	Dependencies:	9064

   
   After:
   
   

           Dependencies:	9058
   	Dependencies:	9059
   	Dependencies:	9061
   	Dependencies:	9062
   	Dependencies:	9063
   	Dependencies:	9064

   
   
5. Delete the Extension path object
   
   Before:
   
   

   (FN.9059
   	Path:	"$AVEXT/adrg.avx"
   )
   
   (FN.9060
   	Path:	"$AVEXT/cadrg.avx"
   )
   
   (FN.9061
   	Path:	"$AVEXT/stmap.avx"
   )

   
   After:
   
   

   (FN.9059
   	Path:	"$AVEXT/adrg.avx"
   )
   
   (FN.9061
   	Path:	"$AVEXT/stmap.avx"
   )

   
   
6. Remove the extension from the Dependencies list
   
   Before:
   
   

   Dependencies:
   	"$AVEXT/adrg.avx\n$AVEXT/cadrg.avx\n$AVEXT/smap.avx\n
   $AVEXT/arcpress.avx\n$AVEXT/spatial.avx\n"

   
   After:
   
   

   Dependencies:
   	"$AVEXT/adrg.avx\n$AVEXT/smap.avx\n$AVEXT/arcpress.avx\n
   $AVEXT/spatial.avx\n"

   
   
7. Save the file in Wordpad
8. Open ArcView
9. Make sure the CIB and CADRG extension are turned off
10. Open the project
    
    

    Note:
    Follow the same steps above to remove the CIB extension from a Project file.  Search for "CIB" instead of "CADRG".