Error when starting up HB

[skoalpopper]

[11:12:17 PM:956] System.TypeInitializationException: The type initializer for 'Styx.Logic.BehaviorTree.TreeRoot' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Styx.BotEvents' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
at Styx.BotEvents..cctor()

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

--- End of inner exception stack trace ---
at Styx.BotEvents.add_OnBotStart(OnBotStartDelegate value)
at Styx.Logic.BehaviorTree.TreeRoot..cctor()
--- End of inner exception stack trace ---
at Styx.Logic.BehaviorTree.TreeRoot.add_OnStatusTextChanged(EventHandler`1 value)
at ..?(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
[11:12:23 PM:850] System.TypeInitializationException: The type initializer for 'Styx.Logic.BehaviorTree.TreeRoot' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Styx.BotEvents' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
at Styx.BotEvents..cctor()

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

--- End of inner exception stack trace ---
at Styx.BotEvents.add_OnBotStart(OnBotStartDelegate value)
at Styx.Logic.BehaviorTree.TreeRoot..cctor()
--- End of inner exception stack trace ---
at Styx.Logic.BehaviorTree.TreeRoot.get_IsRunning()
at ..•(Object sender, EventArgs e)
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

 

[skoalpopper]

Error with .net 3.5

So ive narrowed it down to the .net 3.5. When i try this

* Start -> Control Panel -> Programs and Features
* On the left pane, "Turn Windows features on or off". A new dialog pops up.
* Be sure "Microsoft .NET Framework 3.5.1 is ticked ON
* "Okay"
* You may have to reboot.


I get "An error has occurred. Not all of the features were successfully changed".

Ive also tried to uninstall 3.5, but since alot of apps in windows 7 run off of 3.5 it doesnt give me the option to.

Any ideas?