DllNotFoundException: Unable to load DLL 'fmodstudio': The specified module could not be found

Unity
1

I’m seeing the current error in the log from RELEASE builds using FMOD Integration 2.01.09 in a Unity 2019.4.28f1 project:

DllNotFoundException: Unable to load DLL 'fmodstudio': The specified module could not be found.
  at FMOD.Memory.GetStats (System.Int32& currentalloced, System.Int32& maxalloced, System.Boolean blocking) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeUtils.EnforceLibraryOrder () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.get_Instance () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.PathToGUID (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.CreateInstance (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio+GenericEvent..ctor (System.String stateEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.MapUIEvent (Myriad.AudioSettings+UI+UIEvent uiEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.Initialize () [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Assets+<LoadAssetBundles>d__20.MoveNext () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0 
Rethrow as SystemNotInitializedException: [FMOD] Initialization failed
  at FMODUnity.RuntimeManager.get_Instance () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.PathToGUID (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.CreateInstance (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio+GenericEvent..ctor (System.String stateEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.MapUIEvent (Myriad.AudioSettings+UI+UIEvent uiEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.Initialize () [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Assets+<LoadAssetBundles>d__20.MoveNext () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0 
 
(Filename: currently not available on il2cpp Line: -1)

NullReferenceException: Object reference not set to an instance of an object.
  at FMODUnity.RuntimeManager.Start () [0x00000] in <00000000000000000000000000000000>:0 
 
(Filename: currently not available on il2cpp Line: -1)

DllNotFoundException: Unable to load DLL 'fmodstudio': The specified module could not be found.
  at FMOD.Memory.GetStats (System.Int32& currentalloced, System.Int32& maxalloced, System.Boolean blocking) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeUtils.EnforceLibraryOrder () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.get_Instance () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.PathToGUID (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.CreateInstance (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio+GenericEvent..ctor (System.String stateEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.MapUIEvent (Myriad.AudioSettings+UI+UIEvent uiEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.Initialize () [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Assets+<LoadAssetBundles>d__20.MoveNext () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0 
Rethrow as SystemNotInitializedException: [FMOD] Initialization failed
  at FMODUnity.RuntimeManager.get_Instance () [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.PathToGUID (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at FMODUnity.RuntimeManager.CreateInstance (System.String path) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio+GenericEvent..ctor (System.String stateEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.MapUIEvent (Myriad.AudioSettings+UI+UIEvent uiEvent) [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Audio.Initialize () [0x00000] in <00000000000000000000000000000000>:0 
  at Myriad.Assets+<LoadAssetBundles>d__20.MoveNext () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0 
 
(Filename: currently not available on il2cpp Line: -1)

Interestingly, the same problem does not occur in a DEVELOPMENT build. The game works fine in editor and in development builds, but fails at startup when running as a release build.

Could this be related in any way to the two other problems I’ve been seeing and have attempted to work around?

First problem: https://qa.fmod.com/t/the-name-staticpluginmanager-does-not-exist-in-the-current-context/17502/2

Second problem: https://qa.fmod.com/t/fmod-asyncmanager-asyncthreadloop-system-update-returned-error-2/17499

2

Before looking more into this, can you please try updating to 2.01.10 and confir whether you are still getting this issue? I suspect it is related to the StaticPluginManager line which you have modified, and should be fixed from 2.01.10 onward.

3

I have the same issue, dev builds are fine, master builds have missing FMOD dll.
Unity : 2021.3.22
FMOD Integration : 2.02.11
GDK (XBox One and Series) : 10.0.22621

4

I have not been able to reproduce this issue with your versions.
Perhaps the DLL import settings aren’t being updated correctly during packaging.
Can you please try manually updating the import settings for fmod.dll and fmodstudio.dll to include on GameCore? i.e.

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