diff --git a/RBBGCMuso/R/atStart.R b/RBBGCMuso/R/atStart.R
index 4c35a70..cd92a89 100644
--- a/RBBGCMuso/R/atStart.R
+++ b/RBBGCMuso/R/atStart.R
@@ -23,7 +23,7 @@
             RMuso_varTable[[version]] <<- varTable
         })
 
-    RMuso_depTree<- read.csv(file.path(system.file("data",package="RBBGCMuso"),"depTree.csv"), stringsAsFactors=FALSE)
+    RMuso_depTree<- try(read.csv(file.path(system.file("data",package="RBBGCMuso"),"depTree.csv"), stringsAsFactors=FALSE))
 
 
     options(RMuso_version=RMuso_version,