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Hi there,

So as the title indicates I’m trying to build my FMOD project but it fails due to an error with loading the bank file. The console output seems to indicate it is an issue with ffmpegsumo.dll.

The full error:
fmod_pluginfactory.cpp(583), PluginFactory::loadPlugin(): No FMOD symbols found in dynamic library ‘C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll’
Error loading plugin C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll: Error loading file.

A previous post seems to indicate an issue with upgrading a project (which I’ve recently done from 1.09). https://www.fmod.org/questions/question/ffmpegsumo-dll-error-in-fmod-studio-1-08/

Is there anything in particular I need to do to fix this?

If you need anything else from me please let me know!

Thanks

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Best Answer
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Hi Jack,

That error shouldn’t be preventing you from building your banks. It is just for playing previews in FMOD.io.

If building the banks fails, it should display an error message in a dialog.

Otherwise, could you please post your full log here? We should be able to see something from it.

Thanks,
Richard

  • Jack

    Hey Richard, thanks for the quick response.

    The error in the dialogue is
    Failed to build bank “Master Bank” due the following error: Error loading file

    This is the console log with a clean just before I hit build

    14:34:26 [Uninitialize Sound System 0x0000012c0d288940]: Time started
    14:34:26 [Uninitialize Sound System 0x0000012c0d288940]: Time taken is 19.75ms
    14:34:26 [Initialize Sound System 0x0000012c0d288940]: Time started
    14:34:26 fmod_pluginfactory.cpp(583), PluginFactory::loadPlugin(): No FMOD symbols found in dynamic library ‘C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll’
    14:34:26 Error loading plugin C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll: Error loading file.
    14:34:26 [Initialize Sound System 0x0000012c0d288940]: Time taken is 266.01ms
    14:34:26 [Build bank “Master Bank”)]: Time started
    14:34:26 [Write bank to file]: Time started
    14:34:26 “FMOD_ERROR (13): Error loading file.”
    14:34:26 “FMOD_ERROR e:\jk\workspace\Build__1.10__Studio_Win\studio\src\Model\Bank.cpp(117): stream.open()”
    14:34:26 [Write bank to file]: Time taken is 0.52ms
    14:34:26 [Build bank “Master Bank”)]: Time taken is 34.38ms
    14:34:29 [Uninitialize Sound System 0x0000012c0d288940]: Time started
    14:34:29 [Uninitialize Sound System 0x0000012c0d288940]: Time taken is 10.88ms
    14:34:29 [Initialize Sound System 0x0000012c0d288940]: Time started
    14:34:30 fmod_pluginfactory.cpp(583), PluginFactory::loadPlugin(): No FMOD symbols found in dynamic library ‘C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll’
    14:34:30 Error loading plugin C:/Program Files/FMOD SoundSystem/FMOD Studio 1.10.00/Plugins/qtwebengine/ffmpegsumo.dll: Error loading file.
    14:34:30 [Initialize Sound System 0x0000012c0d288940]: Time taken is 295.63ms

  • Richard Simms

    Hi Jack,

    It looks like FMOD Studio can’t open a bank to write to it. Could you check the bank folder you’re building to isn’t being locked by a different program (eg. loaded by a game engine)? You can also test by specifying a new build folder in the Preferences window.

    Thanks,
    Richard

  • Jack

    Hey Richard,

    Not entirely sure what the issue was, but after I properly set up perforce integration it started working! Which is odd as the actual bank file was set to read/write.

    Either way it’s working now, so thanks!

  • Richard Simms

    Hi Jack,

    That makes sense, Perforce will lock the bank files if you don’t have them checked out. I’m glad it all worked out.

    Thanks,
    Richard

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Interesting. I had the exact same problem… however, I noticed what was causing it. Silly me left the game running in Unreal, thinking I had stopped it (as the game end has nothing right now, no audio or anything happening…). Anyways, stopping Unreal allowed me to build banks… obviously 😉

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