3D's Max (V-Ray), Unexpected exception (Failed to open the max renderer

This problem is plaguing me. Are there any options that I can do?

3ds max, V-Ray

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Error
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Error: RenderTask: Unexpected exception (Failed to open the max renderer.
2024/03/10 01:24:26 DBG: [11788] [06384] Starting network
2024/03/10 01:24:26 INF: [11788] [06384] Application started with secure mode state 'OFF'
2024/03/10 01:24:26 INF: [11788] [06384] Product version: 3ds Max 2020 (22.0.0.757)
2024/03/10 01:24:26 DBG: [11788] [06384] ADP Initialize: Done
2024/03/10 01:24:26 INF: [11788] [06384] Data collection and use is 'ON'. Change your participation anytime in the Help menu of 3ds Max.
2024/03/10 01:24:26 DBG: [11788] [06384] Could not find the specified file in DefaultSettingsParser::parse()
2024/03/10 01:24:34 DBG: [11788] [06384] Graphics driver requested by the user : Nitrous
2024/03/10 01:24:34 DBG: [11788] [06384] Graphics driver actually created in the viewports : null driver
2024/03/10 01:24:35 INF: [11788] [06384] Autodesk 3ds Max Security Tools is active via configuration settings
2024/03/10 01:24:35 INF: [11788] [06384] ALC Security Tool 1.0 loaded.  (c:\program files\autodesk\3ds max 2020\applicationplugins\securitytools\contents\scripts\ALC_SecurityTool.ms)
2024/03/10 01:24:35 INF: [11788] [06384] CRP Security Tool 1.0 loaded.  (c:\program files\autodesk\3ds max 2020\applicationplugins\securitytools\contents\scripts\CRP_SecurityTool.ms)
2024/03/10 01:24:35 INF: [11788] [06384] ADSL Security Tool 1.0 loaded.  (c:\program files\autodesk\3ds max 2020\applicationplugins\securitytools\contents\scripts\ADSL_SecurityTool.ms)
2024/03/10 01:24:40 DBG: [11788] [06384] Starting network
2024/03/10 01:24:41 DBG: [11788] [06384] Calling NetRenderPreLoad
2024/03/10 01:24:41 DBG: [11788] [06384] in NetWorkerPreLoad. jobFile: ; jobname: C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max
2024/03/10 01:24:41 DBG: [11788] [06384] in Init. jobFile: ; jobname: C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max
2024/03/10 01:24:41 DBG: [11788] [06384] in Init. calling nrGetIface. jobToSend: C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max
2024/03/10 01:24:41 DBG: [11788] [06384] in NetWorkerPreLoad. curJobname: C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max; init: 0
2024/03/10 01:24:41 DBG: [11788] [06384] in NetWorkerPreLoad. calling PostInitMessageSystem()
2024/03/10 01:24:41 DBG: [11788] [06384] in NetWorkerPreLoad. srv_pid: 0
2024/03/10 01:24:41 DBG: [11788] [06384] leaving NetWorkerPreLoad. LoadLib()
2024/03/10 01:24:41 DBG: [11788] [06384] NetRenderPreLoad passed
2024/03/10 01:24:41 INF: [11788] [06384] SYSTEM: Production renderer is changed to Scanline Renderer. Previous messages are cleared.
2024/03/10 01:24:46 DBG: [11788] [06384] Interface8::LoadFromFile(C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max)
2024/03/10 01:24:46 INF: [11788] [06384] Starting to load file: C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max
2024/03/10 01:24:46 DBG: [11788] [06384] WARNING: The Populate data is missing on your system.
2024/03/10 01:24:46 INF: [11788] [06384] Done loading file:  C:\ProgramData\Thinkbox\Deadline10\workers\NODE_02\jobsData\65ece0a9e2720d2030fa478f\maxStartup\0\deadlineStartupMax2020.max 
2024/03/10 01:24:46 DBG: [11788] [06384] Interface8::LoadFromFile(C:/ProgramData/Thinkbox/Deadline10/workers/NODE_02/jobsData/65ece0a9e2720d2030fa478f/test_dedelaine.max)
2024/03/10 01:24:46 INF: [11788] [06384] Starting to load file: C:/ProgramData/Thinkbox/Deadline10/workers/NODE_02/jobsData/65ece0a9e2720d2030fa478f/test_dedelaine.max
2024/03/10 01:24:46 INF: [11788] [06384] Done loading file:  C:/ProgramData/Thinkbox/Deadline10/workers/NODE_02/jobsData/65ece0a9e2720d2030fa478f/test_dedelaine.max 
2024/03/10 01:24:46 INF: [11788] [06384] SYSTEM: Production renderer is changed to V-Ray GPU 6, update 2. Previous messages are cleared.
2024/03/10 01:24:47 ERR: [11788] [06384] [V-Ray] Could not read V-Ray environment variable "VRAY_FOR_3DSMAX2020_MAIN". Please re-install
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] ============================================================
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] Console created, V-Ray 6.20.03 for x64 from Dec 21 2023, 00:45:55
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] ============================================================
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] Compiled with Microsoft Visual C++ compiler, version 19.24
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] Host is 3ds Max, version 22
2024/03/10 01:24:47 INF: [11788] [06384] [V-Ray] V-Ray DLL version is 6.20.03
2024/03/10 01:25:02 ERR: [11788] [06384] [V-Ray] V-Ray RTEngine DLL not found.
2024/03/10 01:25:02 ERR: [11788] [06384] [V-Ray] 1 error(s), 0 warning(s)
)
   at Deadline.Plugins.PluginWrapper.RenderTasks(Task task, String& outMessage, AbortLevel& abortLevel)

Have you tried re-installing V-Ray so that environment variable is set up on the machine? I’m sure you could set it manually, but I don’t know what you’d set it to.

1 Like

Thanks for the tip. As it turns out, I only needed to restart my computer after installing V-Ray. It turns out that the problem is solved by rebooting.

1 Like