hi,
suddenly i cannot start the unity editor anymore. it takes some seconds and after that i get the message
“runtime error! this application has requested the runtime to terminate it in an unusual way.
please contact the application’s support team for more information.”
i uninstalled an reinstalled with the latest version, tried different projects… nothing… whats left to do? without reinstalling the whole computer… 
thx for help!!!
You could look in the Unity Editor log.
http://unity3d.com/support/documentation/Manual/Log%20Files.html
ok, good thought…
BatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, shouldGiveDebuggerChanceToAttach: 0
Initialize mono
Mono path[0] = ‘C:/Program Files (x86)/Unity3/Editor/Data/Mono/lib/mono/2.0’
Mono path[1] = ‘C:/Program Files (x86)/Unity3/Editor/Data/Managed’
Mono path[2] = ‘C:/Program Files (x86)/Unity3/Editor/Data/UnityScript’
Using monoOptions --debugger-agent=transport=dt_socket,embedding=1,defer=y
Direct3D:
Version: Direct3D 9.0c [aticfx32.dll 8.17.10.24]
Renderer: ATI Radeon HD 5700 Series
Vendor: ATI
VRAM: 1024 MB
Caps: Shader=30 DepthRT=1 NativeDepth=1 NativeShadow=1 DF16=1 DF24=1 INTZ=1 RAWZ=0 NULL=1 RESZ=1 SlowINTZ=1
IsTimeToCheckForNewEditor: Update time 1308909644 current 1311262320
LicenseInfo:InitializeProtection
open PACE from our own executable
opened PACE, get info…
checked authorization, authstate=100 r=0
ReadDeveloperData
ReadTokens
C:/SVN/xxxxxxxxxx_unity/Unity
Unloading -2 unused Assets to reduce memory usage. Loaded Objects now: 45.
System memory in use: 83.3 MB.
Unloading 20 Unused Serialized files (Serialized files now loaded: 0 / Dirty serialized files: 0)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Managed\UnityEngine.dll (this message is harmless)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Managed\UnityEditor.dll (this message is harmless)
Non platform assembly: data-0F4C9078 (this message is harmless)
Non platform assembly: data-0F4E5088 (this message is harmless)
Non platform assembly: data-0F571358 (this message is harmless)
Non platform assembly: data-0F4BEC30 (this message is harmless)
Non platform assembly: data-0F4C1740 (this message is harmless)
Non platform assembly: data-05EE0FE8 (this message is harmless)
Non platform assembly: data-0F5BE3A8 (this message is harmless)
Non platform assembly: data-0F5D63B0 (this message is harmless)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Mono\lib\mono\2.0\I18N.dll (this message is harmless)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Mono\lib\mono\2.0\I18N.West.dll (this message is harmless)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Mono\lib\mono\2.0\System.Xml.dll (this message is harmless)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Mono\lib\mono\2.0\System.dll (this message is harmless)
TypeLoadException: Could not load type ‘XXXXXXXXXX.XXXXXXXXX.Common.Persistence.Data.SharedShipInstanceData’ from assembly ‘XXXXXXXXXX.XXXXXXXXX.Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null’.
at (wrapper managed-to-native) System.MonoCustomAttrs:GetCustomAttributesInternal (System.Reflection.ICustomAttributeProvider,System.Type,bool)
at System.MonoCustomAttrs.GetCustomAttributesBase (ICustomAttributeProvider obj, System.Type attributeType) [0x00000] in :0
at System.MonoCustomAttrs.GetCustomAttributes (ICustomAttributeProvider obj, System.Type attributeType, Boolean inherit) [0x00000] in :0
at System.MonoType.GetCustomAttributes (System.Type attributeType, Boolean inherit) [0x00000] in :0
at UnityEngine.AttributeHelperEngine.CheckIsEditorScript (System.Type klass) [0x00005] in C:\BuildAgent\work\6bc5f79e0a4296d6\Runtime\Export\AttributeHelperEngine.cs:63
(Filename: C:/BuildAgent/work/6bc5f79e0a4296d6/Runtime/Export/AttributeHelperEngine.cs Line: 63)
TypeLoadException: Could not load type ‘XXXXXXXXX.XXXXXXX.Common.Persistence.Data.SharedCannonData’ from assembly ‘XXXXXXXXXXXX.XXXXXXXXXX.Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null’.
at (wrapper managed-to-native) System.MonoCustomAttrs:GetCustomAttributesInternal (System.Reflection.ICustomAttributeProvider,System.Type,bool)
at System.MonoCustomAttrs.GetCustomAttributesBase (ICustomAttributeProvider obj, System.Type attributeType) [0x00000] in :0
at System.MonoCustomAttrs.GetCustomAttributes (ICustomAttributeProvider obj, System.Type attributeType, Boolean inherit) [0x00000] in :0
at System.MonoType.GetCustomAttributes (System.Type attributeType, Boolean inherit) [0x00000] in :0
at UnityEngine.AttributeHelperEngine.CheckIsEditorScript (System.Type klass) [0x00005] in C:\BuildAgent\work\6bc5f79e0a4296d6\Runtime\Export\AttributeHelperEngine.cs:63
(Filename: C:/BuildAgent/work/6bc5f79e0a4296d6/Runtime/Export/AttributeHelperEngine.cs Line: 63)
TypeLoadException: Could not load type ‘System.Runtime.CompilerServices.CompilerGeneratedAttribute’ from assembly ‘mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.
at (wrapper managed-to-native) System.MonoCustomAttrs:GetCustomAttributesInternal (System.Reflection.ICustomAttributeProvider,System.Type,bool)
at System.MonoCustomAttrs.GetCustomAttributesBase (ICustomAttributeProvider obj, System.Type attributeType) [0x00000] in :0
at System.MonoCustomAttrs.GetCustomAttributes (ICustomAttributeProvider obj, System.Type attributeType, Boolean inherit) [0x00000] in :0
at System.MonoType.GetCustomAttributes (System.Type attributeType, Boolean inherit) [0x00000] in :0
at UnityEngine.AttributeHelperEngine.CheckIsEditorScript (System.Type klass) [0x00005] in C:\BuildAgent\work\6bc5f79e0a4296d6\Runtime\Export\AttributeHelperEngine.cs:63
(Filename: C:/BuildAgent/work/6bc5f79e0a4296d6/Runtime/Export/AttributeHelperEngine.cs Line: 63)
Platform assembly: C:\Program Files (x86)\Unity3\Editor\Data\Mono\lib\mono\2.0\System.Core.dll (this message is harmless)
TypeLoadException: Could not load type ‘’ from assembly ‘UnityEditor, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null’.
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[ ],System.Exception)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[ ] parameters, System.Globalization.CultureInfo culture) [0x00000] in :0
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[ ] parameters, System.Globalization.CultureInfo culture) [0x00000] in :0
at System.MonoType.InvokeMember (System.String name, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object target, System.Object[ ] args, System.Reflection.ParameterModifier[ ] modifiers, System.Globalization.CultureInfo culture, System.String[ ] namedParameters) [0x00000] in :0
at UnityEngine.SetupCoroutine.InvokeStatic (System.Type klass, System.String name, System.Object variable) [0x00013] in C:\BuildAgent\work\6bc5f79e0a4296d6\Runtime\Export\Coroutines.cs:30
(Filename: C:/BuildAgent/work/6bc5f79e0a4296d6/Runtime/Export/Coroutines.cs Line: 30)
Mono: successfully reloaded assembly
geee… i am only a little artist… 
Log looks fine to me. What OS are you using? Perhaps try uninstalling this using an uninstaller program like Revo uninstaller. I always use it to do a very clean uninstall. Might be files still lying around your computer. (I assumed you are using Windows) 
thx for your answer 
i am using windos7… perhaps a really, really clean uninstall will help, i will try that. its odd, i went to holidays and before i left the office, everything was ok. when i cam back i had this error…
Maybe you can try this for now and if it still don’t work maybe try a older version.
sooo… i did a really, really clean uninstall. installed the 3.1 version of unity and it worked. updated to 3.3 and it still worked… thx for the support!!