FMOD.Debug.Initialize return ERR_UNSUPPORTED

Hi…

code:
result = FMOD.Debug.Initialize(FMOD.DEBUG_FLAGS.LOG, FMOD.DEBUG_MODE.FILE, null, RuntimeUtils.LogFileName);
error:
result = ERR_UNSUPPORTED

question:
Why return this error ID ?
Is it because the Fmod code is encapsulated to DLL ?

Is there anyone knows ? pls tell me ,tks .

Are use sure that you’re using FMOD distribution with logging support? These are DLLs with ‘L’ in their name

thank u for your answer
I’ve found this problem as u say. and fix it .
however, it caused every operate with lowLevelSystem is wrong with reault “ERR_INVALID_HANDLE” ? I’m puzzled .Do you know why this is the cause?

i’ve find the reason, STUDIO_VERSION is not fmodstudioL but fmodstudio, . thks

Nice