The input data in this case is not set up correctly to run the Solve Vehicle Routing Problem tool. The Solve Vehicle Routing Problem tool must have a number of fields to specify the inputs. To fix this problem, perform the following steps:
1. On the Depot feature class, add a NAME text field and calculate the field to a name like Depot.
2. On the Route feature class, add three text fields: NAME, STARTDEPOTNAME, ENDDEPOTNAME. Calculate the field NAME to be 'Truck' and the other two to be 'Depot'.
3. Run the Solve Vehicle Routing Problem tool with the updated feature classes.
If the issue persists after performing the workflow above, please contact Esri Support.
解决办法
Remove the subtypes from the streets feature class.
Open ArcCatalog and right-click the streets feature class > Properties > click the Subtype tab > change the Subtype Field to '<None>' > OK.