Hello Guys,
I got the error when creating RouteTask with .geodatabase(which downloaded from http://www.arcgis.com/home/item.html?id=bd441813cd2f4c8891aee671a65feb54) :

(error massage is [Internal error:(the name of geodatabase)] )

(error stacktrace)
this error also happended to .geodatabase which I created from ArcMap(I try it in both 10.3 and 10.5).
P.S. My ArcGIS Runtime SDK version is 100.4
What should I do?
Or can someone provide me .geodatabase file worked fine? Please Help.Thank you.