--- rat/lonuserstate.pm	2009/11/15 21:31:23	1.133
+++ rat/lonuserstate.pm	2009/12/03 19:01:33	1.134
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Construct and maintain state and binary representation of course for user
 #
-# $Id: lonuserstate.pm,v 1.133 2009/11/15 21:31:23 raeburn Exp $
+# $Id: lonuserstate.pm,v 1.134 2009/12/03 19:01:33 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -62,6 +62,12 @@ my %hiddenurl; # this URL (or complete f
 
 # ----------------------------------- Remove version from URL and store in hash
 
+sub versionerror {
+    my ($uri,$usedversion,$unusedversion)=@_;
+    return '<br />'.&mt('Version discrepancy: resource [_1] included in both version [_2] and version [_3]. Using version [_2].',
+                    $uri,$usedversion,$unusedversion).'<br />';
+}
+
 sub versiontrack {
     my $uri=shift;
     if ($uri=~/\.(\d+)\.\w+$/) {
@@ -69,7 +75,9 @@ sub versiontrack {
 	$uri=~s/\.\d+\.(\w+)$/\.$1/;
         unless ($hash{'version_'.$uri}) {
 	    $hash{'version_'.$uri}=$version;
-	}
+	} elsif ($version!=$hash{'version_'.$uri}) {
+            $errtext.=&versionerror($uri,$hash{'version_'.$uri},$version);
+        }
     }
     return $uri;
 }