[Qt-creator] RouteRequest problem

[Ghobad Zarrinchian]

Dear all,
I need to implement a simple Qt GeoRouting application in which a route is
requested for two given coordinates. However, an error is reported when
running application. The error says:

Error transferring
http://router.project-osrm.org/route/v1/driving/-73.9562151,40.6758950;-73.9877150,40.6833154?overview=full&steps=true&geometries=polyline6&alternatives=true&bearings=;
- server replied: Bad Request


Can someone tell me what the problem is? Is something wrong with my code?

Thanks
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