# FMOD Studio: Encounterd Error: ERR\_VERSION The version number of this file format is not supported. Unity 2020.2
**URL:** https://qa.fmod.com/t/fmod-studio-encounterd-error-err-version-the-version-number-of-this-file-format-is-not-supported-unity-2020-2/16592
**Category:** Unity
**Created:** [December 24, 2020, 1:07am UTC](https://qa.fmod.com/t/fmod-studio-encounterd-error-err-version-the-version-number-of-this-file-format-is-not-supported-unity-2020-2/16592 "2020-12-24T01:07:52Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@celeronpm](https://qa.fmod.com/u/celeronpm)
#### Post date: [December 24, 2020, 1:07am UTC](https://qa.fmod.com/t/fmod-studio-encounterd-error-err-version-the-version-number-of-this-file-format-is-not-supported-unity-2020-2/16592/1 "2020-12-24T01:07:52Z")
Unity 2020.2.0f1
FMod Studio 2.01.05
Unity Fmod Package 2.01.05 (Current) - released on November 13, 2020
FMOD Studio: Encounterd Error: ERR\_VERSION The version number of this file format is not supported.
0x00007ff610fa8c8c (Unity) StackWalker::GetCurrentCallstack
0x00007ff610fb1069 (Unity) StackWalker::ShowCallstack
0x00007ff61248564c (Unity) GetStacktrace
0x00007ff613543a93 (Unity) DebugStringToFile
0x00007ff61113c439 (Unity) DebugLogHandler\_CUSTOM\_Internal\_Log
0x000001c0b87ab9ab (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal\_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
0x000001c0b87ab84b (Mono JIT Code) UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
0x000001c0b87aad6e (Mono JIT Code) UnityEngine.Logger:Log (UnityEngine.LogType,object)
0x000001c0e048a13a (Mono JIT Code) UnityEngine.Debug:LogError (object)
0x000001c0e049c693 (Mono JIT Code) [EditorUtils.cs:25] FMODUnity.EditorUtils:CheckResult (FMOD.RESULT)
0x000001c0e0491e4b (Mono JIT Code) [EventManager.cs:157] FMODUnity.EventManager:UpdateCache ()
0x000001c0e0489463 (Mono JIT Code) [EventManager.cs:758] FMODUnity.EventManager:EventFromString (string)
0x000001c0e048925b (Mono JIT Code) [EventManager.cs:751] FMODUnity.EventManager:EventFromPath (string)
0x000001c143505d5b (Mono JIT Code) [StudioEventEmitterEditor.cs:16] FMODUnity.StudioEventEmitterEditor:OnSceneGUI ()
0x000001c0aa483090 (Mono JIT Code) (wrapper runtime-invoke) object:runtime\_invoke\_void\_\_this\_\_ (object,intptr,intptr,intptr)
0x00007ff8f58ce0c0 (mono-2.0-bdwgc) [mini-runtime.c:2812] mono\_jit\_runtime\_invoke
0x00007ff8f5852902 (mono-2.0-bdwgc) [object.c:2921] do\_runtime\_invoke
0x00007ff8f585bb32 (mono-2.0-bdwgc) [object.c:3073] mono\_runtime\_invoke\_checked
0x00007ff8f585c2c9 (mono-2.0-bdwgc) [object.c:5264] mono\_runtime\_try\_invoke\_array
0x00007ff8f585bac6 (mono-2.0-bdwgc) [object.c:5142] mono\_runtime\_invoke\_array\_checked
0x00007ff8f58003a4 (mono-2.0-bdwgc) [icall.c:3358] ves\_icall\_InternalInvoke
0x000001c0ab2b67c6 (Mono JIT Code) (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
0x000001c0ab2b4d8b (Mono JIT Code) System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
0x000001c0ab2b4a4f (Mono JIT Code) System.Reflection.MethodBase:Invoke (object,object[])
0x000001c143504b23 (Mono JIT Code) UnityEditor.SceneView:CallOnSceneGUI ()
0x000001c1efeafe83 (Mono JIT Code) UnityEditor.SceneView:HandleSelectionAndOnSceneGUI ()
0x000001c1efe6c743 (Mono JIT Code) UnityEditor.SceneView:OnGUI ()
0x000001c0b86eb384 (Mono JIT Code) UnityEditor.HostView:InvokeOnGUI (UnityEngine.Rect,UnityEngine.Rect)
0x000001c0b86ead53 (Mono JIT Code) UnityEditor.DockArea:DrawView (UnityEngine.Rect,UnityEngine.Rect)
0x000001c0b86d154b (Mono JIT Code) UnityEditor.DockArea:OldOnGUI ()
0x000001c0b65d831a (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool,UnityEngine.Rect,System.Action,bool)
0x000001c0b65d5c73 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,System.Action,bool)
0x000001c0b65d33cb (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,System.Action,bool)
0x000001c0b65d2fb3 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,bool)
0x000001c0b65d22fb (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase,bool,bool)
0x000001c0b65d1f53 (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:SendEventToIMGUI (UnityEngine.UIElements.EventBase,bool,bool)
0x000001c0b62b802b (Mono JIT Code) UnityEngine.UIElements.IMGUIContainer:HandleEvent (UnityEngine.UIElements.EventBase)
0x000001c0b6294a3a (Mono JIT Code) UnityEngine.UIElements.EventDispatchUtilities:PropagateEvent (UnityEngine.UIElements.EventBase)
0x000001c0e0b8b003 (Mono JIT Code) UnityEngine.UIElements.MouseEventDispatchingStrategy:SendEventToRegularTarget (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.BaseVisualElementPanel)
0x000001c0e0b8ad3b (Mono JIT Code) UnityEngine.UIElements.MouseEventDispatchingStrategy:SendEventToTarget (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.BaseVisualElementPanel)
0x000001c0e0b863ab (Mono JIT Code) UnityEngine.UIElements.MouseEventDispatchingStrategy:DispatchEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001c0b6291846 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,bool)
0x000001c0b6290433 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001c0b62a1183 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEventQueue ()
0x000001c0b629c42b (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:OpenGate ()
0x000001c0b629c1cb (Mono JIT Code) UnityEngine.UIElements.EventDispatcherGate:Dispose ()
0x000001c0b6290d93 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:ProcessEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel)
0x000001c0b627f653 (Mono JIT Code) UnityEngine.UIElements.EventDispatcher:Dispatch (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.IPanel,UnityEngine.UIElements.DispatchMode)
0x000001c0b628feab (Mono JIT Code) UnityEngine.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.UIElements.EventBase,UnityEngine.UIElements.DispatchMode)
0x000001c0b6448613 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel)
0x000001c0b6447863 (Mono JIT Code) UnityEngine.UIElements.UIElementsUtility:UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (int,intptr,bool&)
0x000001c0b644724f (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration:ProcessEvent (int,intptr)
0x000001c0b6446f5b (Mono JIT Code) UnityEngine.UIElements.UIEventRegistration/\<\>c:\<.cctor\>b\_\_1\_2 (int,intptr)
0x000001c0b6446a75 (Mono JIT Code) UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)
0x000001c0b6446c96 (Mono JIT Code) (wrapper runtime-invoke) :runtime\_invoke\_void\_int\_intptr\_intptr& (object,intptr,intptr,intptr)
0x00007ff8f58ce0c0 (mono-2.0-bdwgc) [mini-runtime.c:2812] mono\_jit\_runtime\_invoke
0x00007ff8f5852902 (mono-2.0-bdwgc) [object.c:2921] do\_runtime\_invoke
0x00007ff8f585b95f (mono-2.0-bdwgc) [object.c:2968] mono\_runtime\_invoke
0x00007ff610e25d94 (Unity) scripting\_method\_invoke
0x00007ff610e1e585 (Unity) ScriptingInvocation::Invoke
0x00007ff610e176b5 (Unity) ScriptingInvocation::Invoke
0x00007ff60f4df7cd (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
0x00007ff611a44ea6 (Unity) GUIView::ProcessRetainedMode
0x00007ff6124c79b5 (Unity) GUIView::OnInputEvent
0x00007ff611a44d98 (Unity) GUIView::ProcessInputEvent
0x00007ff6124c8e88 (Unity) GUIView::ProcessEventMessages
0x00007ff6124c0390 (Unity) GUIView::GUIViewWndProc
0x00007ff996ebe858 (USER32) CallWindowProcW
0x00007ff996ebe299 (USER32) DispatchMessageW
0x00007ff61248edc3 (Unity) MainMessageLoop
0x00007ff612492eb1 (Unity) WinMain
0x00007ff6142d8256 (Unity) \_\_scrt\_common\_main\_seh
0x00007ff997be7034 (KERNEL32) BaseThreadInitThunk
0x00007ff997dbd0d1 (ntdll) RtlUserThreadStart
---
### Author:  [@celeronpm](https://qa.fmod.com/u/celeronpm)
#### Post date: [December 24, 2020, 1:08am UTC](https://qa.fmod.com/t/fmod-studio-encounterd-error-err-version-the-version-number-of-this-file-format-is-not-supported-unity-2020-2/16592/2 "2020-12-24T01:08:40Z")
I tried loading a project and a build, both have the same error.
---
### Author:  [@celeronpm](https://qa.fmod.com/u/celeronpm)
#### Post date: [December 24, 2020, 2:11am UTC](https://qa.fmod.com/t/fmod-studio-encounterd-error-err-version-the-version-number-of-this-file-format-is-not-supported-unity-2020-2/16592/3 "2020-12-24T02:11:15Z")
Updating studio and plugin to 2.01.07 via the website fixed the issue. Not sure why the Asset Store package version wasn’t up to date, but it defeats the purpose of using it as a package manager.