an issue about the function set_vehicle_route

[snowman109]

what 's the rule for this function? for example(This is a log I printed out.):

vehicle_id:flow_1371_0, current_road:edge301, eng_current_road:edge301, new_route:['edge301', 'edge341', 'edge316', 'edge274', 'edge285', 'edge282', 'edge246'], end_road edge73

The following is the meaning of this log：
The vehicle "flow_1371_0" start road is edge301 and end road is edge73 .And this vehicle is on the edge 301, I also get the same result from the engine.
I want this car to drive in sections, so for the first section I give its route is ['edge301', 'edge341', 'edge316', 'edge274', 'edge285', 'edge282', 'edge246'], I use the function eng.set_vehicle_route('flow_1371_0',['edge301', 'edge341', 'edge316', 'edge274', 'edge285', 'edge282', 'edge246']). And I'm sure the route is connected. But I got false from this function.

[snowman109]

i also use the function for other vehicles, most of them return true, and a few of them return false. But I don't know why

[snowman109]

Let me correct it. I was used the last n-1 element of the list. eng.set_vehicle_route('flow_1371_0',['edge341', 'edge316', 'edge274', 'edge285', 'edge282', 'edge246'])