Handle projects that do not have hierarchy head nodes

Projects/Foundations/UI/Function-Libraries/WorkspaceFunctions.js

@@ -21,6 +21,7 @@ function newFoundationsFunctionLibraryWorkspaceFunctions() {
 
             if (alreadyExist === false) {
                 let child = UI.projects.foundations.functionLibraries.uiObjectsFromNodes.addUIObject(node, project + ' Project', rootNodes, project)
+                if (child === undefined) { continue }
                 child.project = project
                 child.projectDefinition.name = project
                 child.projectDefinition.config = "{ \n  \"codeName\": \"" + project + "\"\n}"