Merge pull request #358 in ZP/z-push from...

Merge pull request #358 in ZP/z-push from bugfix/ZP-1029-z-push-directories-have-root-root to develop

* commit 'c842969d':
  ZP-1029 add instructions if z-push-admin failed. Released under the Affero GNU General Public License (AGPL) version 3.

build/deb/debian.z-push-common.postinst

@@ -6,6 +6,13 @@
 case "$1" in
     configure)
         /usr/local/sbin/z-push-admin -a fixstates
+        if [ $? -ne 0 ]; then
+            YELLOW='\033[0;33m'
+            NC='\033[0m' # No Color
+            echo -e "${YELLOW}When upgrading from an earlier version you need to run 'z-push-admin -a fixstates'.\n
+It seems the execution on setup has failed (see error above). Please fix the issue and run the command manually.\n
+More information at https://wiki.z-hub.io/x/R4Ea${NC}\n"
+        fi
     ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)