# Failed to build bank. File not found. FMOD Studio **URL:** \ **Category:** FMOD Studio\ **Tags:** ue4\ **Created:** [September 19, 2021, 10:08am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688 "2021-09-19T10:08:35Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![alan665](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@alan665](https://qa.fmod.com/u/alan665)\ **Post date:** [September 19, 2021, 10:08am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/1 "2021-09-19T10:08:35Z")
Hi guys, I’ve updated my UE4 project to 4.27 and and as such my FMOD plugin and studio. I am now on FMOD Studio 2.02.03 up from 2.01.07. When I attempt to build banks, FMOD Studio errors and says ‘Failed to build bank. File not found’. [Image of Error](https://i.imgur.com/m0PCnc3.png) According to matthew in the post below, this issue has been fixed as of 2.01.09: > [@Failed to build bank "master" due to the following error: File not found problem](https://qa.fmod.com/t/failed-to-build-bank-master-due-to-the-following-error-file-not-found-problem/17029/11): > > I had that same issue and when i fill all convolution reverb its resolved. Any thoughts on how I could rectify the issue? The original fix was to remove convolution reverb from the bank, however that is not an option for me at this stage of development. Thanks heaps! Al. ---
**Author:** ![alan665](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@alan665](https://qa.fmod.com/u/alan665)\ **Post date:** [September 19, 2021, 12:01pm UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/3 "2021-09-19T12:01:21Z")
Further Info: It appears that if I click the ‘ignore’ button the banks are still (partially?) generated by FMOD Studio. [Build Directory for Banks](https://i.imgur.com/b2SwtXZ.png) In UE4, if I Play in Editor the sounds appear to play. However in my built game the sounds do not play. I have validated my FMOD Project in Studio and UE4. FMOD Studio returns no errors with the project. UE4 states Master.strings does not exist. (Which I presume is related to FMOD not correctly building the banks) [Image UE4 Error](https://i.imgur.com/7WmheEV.png) If I roll back to the older versions of the FMOD plugin, UE4 and Studio I can build the banks/ have sounds play in a built game. ---
**Author:** ![mathew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/mathew/32/431_2.png) [@mathew](https://qa.fmod.com/u/mathew)\ **Post date:** [September 20, 2021, 5:09am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/4 "2021-09-20T05:09:03Z")
Please check that all convolution reverb DSPs in your FMOD Studio project have had an impulse response added to them. Also check the status bar down the bottom in case it says “missing assets”. ---
**Author:** ![alan665](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@alan665](https://qa.fmod.com/u/alan665)\ **Post date:** [September 20, 2021, 8:31am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/5 "2021-09-20T08:31:03Z")
Hey Matthew, Thanks so much for that tip mate. I didnt have the missing assets statusbar. However I found a couple of old test tracks with conv DSP’s and no impulse. Removing them allows me to build the banks now. I’ve ran into one other issue. The built game reports not finding the master.bank. (And as such has no sound). ```auto [2021.09.20-07.59.52:678][0]LogFMOD: FFMODStudioModule startup [2021.09.20-07.59.52:678][0]LogFMOD: Lib path = '../../../Fiftyone/Plugins/FMODStudio/Binaries' [2021.09.20-07.59.52:678][0]LogFMOD: FFMODStudioModule::LoadDll: Loading ../../../Fiftyone/Plugins/FMODStudio/Binaries/Win64/fmodL.dll [2021.09.20-07.59.52:679][0]LogFMOD: FFMODStudioModule::LoadDll: Loading ../../../Fiftyone/Plugins/FMODStudio/Binaries/Win64/fmodstudioL.dll [2021.09.20-07.59.52:680][0]LogFMOD: Error: Failed to load bank lookup [2021.09.20-07.59.52:680][0]LogFMOD: Error: Failed to load asset lookup [2021.09.20-07.59.52:688][0]LogFMOD: Default sample rate = 48000 [2021.09.20-07.59.52:688][0]LogFMOD: System sample rate = 48000 [2021.09.20-07.59.52:688][0]LogFMOD: Matching system sample rate 48000 [2021.09.20-07.59.52:700][0]LogFMOD: Warning: Master bank (Master.bank) not found. ``` I’m correctly copying the banks using the ‘Aditional Non-Asset Directories to Copy’ feature: [Copy Path](https://i.imgur.com/7aLiw3b.png) I believe I have the correct settings in the FMOD plugin/Studio Preferences too: [Plugin Settings](https://i.imgur.com/0mAjmxe.png) [Studio Prefs](https://i.imgur.com/RPVg3dj.png) Anything seem out of the ordinary? ---
**Author:** ![alan665](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@alan665](https://qa.fmod.com/u/alan665)\ **Post date:** [September 21, 2021, 8:49am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/6 "2021-09-21T08:49:39Z")
Hey matthew, got a further update. I was on UE4 Plugin version 2.02.03. Today I noticed today that you guys have released 2.02.03 patch 1. It in the code changes, the prefix now includes the game directory, might have been the issue I was experiencing ![21-09-21-1953](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/5/5a4c20f43fdfd073fcaed53f82416db7a98cab33.png) However upon compiling and running this new version, ive got a crash to desktop. Call stack goes through the FMOD plugin. [Crash Log Download](https://drive.google.com/file/d/15OOe2zD9jQenkeAP0NJ00mhdRBu6sRqe/view?usp=sharing) Deleting my banks folder (Content/FMOD/Desktop) allowed me to get back into the editor. Building banks in FMOD studio (which tells the plugin to reload in UE4) triggers the crash again. I think its because the path to assets isnt cleared before the code changes, removing ContentBrowserPrefix entry from DefaultEngine.ini stopped the crash. ---
**Author:** ![jeff\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/jeff_fmod/32/1766_2.png) [@jeff\_fmod](https://qa.fmod.com/u/jeff_fmod)\ **Post date:** [September 22, 2021, 5:03am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/7 "2021-09-22T05:03:02Z")
Thank you for the extra information- I have reproduced this issue and found that removing the `ContentBrowserPrefix` entry in DefaultEngine.ini effectively recovers the UE project from a bad state. For the no sound issue, can you please go into project settings and search for “Additional Non-Asset Directories to Copy”, then remove the exising FMOD array values and add “/Game/FMOD”? ---
**Author:** ![alan665](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@alan665](https://qa.fmod.com/u/alan665)\ **Post date:** [September 24, 2021, 7:08am UTC](https://qa.fmod.com/t/failed-to-build-bank-file-not-found-fmod-studio/17688/8 "2021-09-24T07:08:24Z")
Hey Jeff, Thanks for getting back to me mate. Removing the prefix entry in DefaultEngine.ini made the plugin automatically enter /Game/FMOD as the path and everything began working, no issues as of the last two days. So I think that old parameter in DefaultEngine.ini from the old version of the plugin was to blame. Thanks heaps for your help on the matter guys!