ContributionsMost RecentMost LikesSolutionsgroovy No signature of method: org.webharvest.runtime.variables.NodeVariable.plus() is applicable for argument types: (java.lang.String) values: [F1951102] Possible solutions: is(java.lang.Object), use([Ljava.lang.Object;), split(groovy.lang.Closure), wait(), find(), dump() I am no sure what is wrong with this