Azure App failing after upgrade to SDK 2.1?
There are many posts online without answers to this problem. No errors are seen anywhere - it may give RoleEnvironment errors or host not found errors. Basically to fix this, just go through all your projects and ensure that the dlls are referencing the correct azure version. In my case, Microsoft.WindowsAzure.ServiceRuntime.dll was referenced to v2.0 and it was giving the problem. Just change it to v2.1 for ALL projects.