MonoGame 3.7.1

The # character exception not fixed for me in GL project :

Microsoft.Xna.Framework.Audio.NoAudioHardwareException was unhandled
ErrorCode=-2147467259
HResult=-2147467259
Message=OpenAL device could not be initialized.
Source=MonoGame.Framework
StackTrace:
at Microsoft.Xna.Framework.Audio.OpenALSoundController.OpenSoundController()
at Microsoft.Xna.Framework.Audio.OpenALSoundController…ctor()
at Microsoft.Xna.Framework.Audio.OpenALSoundController.get_GetInstance()
at Microsoft.Xna.Framework.SdlGamePlatform…ctor(Game game)
at Microsoft.Xna.Framework.Game…ctor()
at Game1.Game1…ctor() in D:\Some#Character\Game1\Game1\Game1.cs:line 15
at Game1.Program.Main() in D:\Some#Character\Game1\Game1\Program.cs:line 16
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
HResult=-2147467261
Message=Object reference not set to an instance of an object.
Source=MonoGame.Framework
StackTrace:
at Microsoft.Xna.Framework.Audio.OpenALSoundController.OpenSoundController()
InnerException:

Win10 64bit
VS Community 2015

I have a clean MonoGame 3.7.1 install. There is no old file left of the previous version in the Program Files folder.