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yaman gul avatar image
yaman gul asked ·

How can i fix arnold, mtoa load and openCL evaulator failed

Hi i using education license with Maya 2020. How can i fix thats errors: mtoa load, arnold error, openCL evaulator failed to initalize clew?


When i was Click Windows > Settings/Preferences > Plug-in Manager

Scroll down until you see mtoa.mll

Click the Loaded and Auto load check boxes

Error: file: C:/Program Files/Autodesk/Maya2020/scripts/others/pluginWin.mel line 317: Initializing dynamic link library (DLL) failed.  (mtoa)
// Warning: file: C:/Program Files/Autodesk/Maya2020/scripts/others/supportRenderers.mel line 67: The renderer "arnold" used by this scene, is not currently available. The "mayaSoftware" renderer will be used instead. To prevent this message from being displayed in the future, set the environment variable: MAYA_NO_WARNING_FOR_MISSING_DEFAULT_RENDERER=1 //

PLUGIN MANAGER MESSAGE:

file -f -new;
// untitled // 
commandPort -securityWarning -name commandportDefault;
onSetCurrentLayout "Maya Classic";
// AbcExport v1.0 using Alembic 1.7.5 (built Feb  6 2018 18:28:08)
// Error: file: C:/Program Files/Autodesk/Maya2020/scripts/startup/autoLoadPlugin.mel line 35: Unable to dynamically load : C:/Program Files/Autodesk/Arnold/maya2020/plug-ins/mtoa.mll
Devingen bağlantı kitaplığını (DLL) başlatma işlemi başarısız.
 // 
// Error: file: C:/Program Files/Autodesk/Maya2020/scripts/startup/autoLoadPlugin.mel line 35: Devingen bağlantı kitaplığını (DLL) başlatma işlemi başarısız.
 (mtoa) // 
// Loading Bifrost version 2.0.3.0
// Bifrost: Loading library: Amino, from: Autodesk.
// Bifrost: Loading library: AminoMayaTranslation, from: Autodesk.
// Bifrost: Loading library: bif, from: Autodesk.
// Bifrost: Loading library: bifrostObjectMayaTranslations, from: Autodesk.
// Bifrost: Loading library: geometries, from: Autodesk.
// Bifrost: Loading library: fluids, from: Autodesk.
// Bifrost: Loading library: particles, from: Autodesk.
// Bifrost: Loading library: file, from: Autodesk.
// Bifrost: Loading library: midgard, from: Autodesk.
// Bifrost: Loading library: nucleus, from: Autodesk.
// Bifrost: Loading library: simulation, from: Autodesk.
// AbcImport v1.0 using Alembic 1.7.5 (built Feb  6 2018 18:28:08)
updateRendererUI;
// Warning: file: C:/Program Files/Autodesk/Maya2020/scripts/others/supportRenderers.mel line 67: The renderer "arnold" used by this scene, is not currently available. The "mayaSoftware" renderer will be used instead. To prevent this message from being displayed in the future, set the environment variable: MAYA_NO_WARNING_FOR_MISSING_DEFAULT_RENDERER=1 //


arnoldmtoa
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Stephen Blair avatar image
Stephen Blair answered ·
  • You need to check the environment of the Maya process. For example, is there another Arnold in PATH? Get the output of system( "set" )
  • Get a Process Monitor log

Upload that info somewhere (in a zip file)

Check these links for info on getting that info:
https://arnoldsupport.com/2016/04/23/mtoa-unable-to-dynamically-load-mtoa-mll-the-specified-procedure-could-not-be-found/

https://arnoldsupport.com/2018/03/27/mtoa-getting-a-process-monitor-log-to-troubleshoot-problems-loading-mtoa/

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