Or-tools: Not specify a start point, but specify an end point

[sanwer0]

Sorry, bad wording in the title. Problem I'm trying to solve: a CVRPTW, but want to assign an arbitrary start point (but not an arbitrary end point).

How I approached this problem: So this is basically a CVRPTW for which I'm trying to alter the code.
1) I know from the documentation you can assign arbitrary start and end points by inserting a row of 0s and column of 0 at the beginning of the distance matrix. I got this part to work fine, and the results were good.

2) I know you can assign start and end locations from the documentation using data['starts'] and data['ends']. I got this part to work as a standalone fine as well

Essentially, I tried to combine the 2 problems by adding the row + column of 0s, and specifying:
data['starts'] = 0 ; (where 0 is the row of 0s in the distance matrix)
data['ends'] = 1 ; (where 1 contains the distances from the depot and every other point)

The problem comes when I combine the 2 approaches, where Python exits without finding a solution. If I remove the following line of code, everything works fine:

time_dimension.CumulVar(index).SetRange(time_window[0], time_window[1])

Not sure what is causing this. Any help appreciated!

[CervEdin]

It sounds like you mean that all vehicles can start "anywhere" but must finish at one specific depot. Simulate this by using a depot and make it free to travel from that depot and just use a cost to that depot.

[sanwer0]

It sounds like you mean that all vehicles can start "anywhere" but must finish at one specific depot. Simulate this by using a depot and make it free to travel from that depot and just use a cost to that depot.

Sorry, yeah, that's exactly what I meant. I'll give that a go!

[sanwer0]

Thanks for that @CervEdin, that worked for me!