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Today I updated the SignalR from 0.5.3 to 1.0rc2 version in one of my application. On running the application I was getting:
A route named 'signalr.hubs' is already in the route collection. Route names must be unique.
The reason I was getting this error because I was having the older SignalR.XX dlls too along with new Microsoft.AspNet.SignalR.XX dlls in my bin folder. Therefore the SignalR hubs route was getting created twice. After removing the SignalR.XX dlls from my bin folder my issue got fixed.
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