Index: lams_central/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -r7c20941ea3590d8a05b4a71e03a66749fb73ce87 -r0559504eae34958a1b85105cedeff10e591a52cf
--- lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 7c20941ea3590d8a05b4a71e03a66749fb73ce87)
+++ lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 0559504eae34958a1b85105cedeff10e591a52cf)
@@ -78,6 +78,7 @@
 title.import.instruction = Please choose LAMS sequence to import.
 title.export.loading = Export tool content loading
 label.ld.zip.file = Learning design import file
+error.ld.zip.file = Only zip files allowed
 msg.import.success = Learning design and activities imported successfully.
 msg.import.ld.success = Learning design imported successfully.
 msg.import.tool.error.prefix = But there are some tool(s) imports that failed