Solving CUDA and C++ Tools Compiling Errors Once and For All for Python AI Applications

This post is full up-to-date as 11 July 2026 and once you followed it for 1 time, you will be ready to install, compile and run any AI application out there including our 100+ AI Apps. You will be able to use Torch Compile with 0 issues and more.

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New literally 1 click Linux and Windows installers published that setups everything : https://www.patreon.com/SECourses/posts/1-click-windows-172290854

• WARNING : Do not have non-English characters in your Windows account username such as Cyrillic characters, Japanese characters or such or you will get very random unexpected errors

• WARNING : Do not use non-English and space characters in your folder paths / names to not have any issues

11 July 2026 Update

• We are more moving into CUDA 13+ and Python 3.12 realm

  • Also Python 3.13 version updated to 3.13.14 - Forge Web UI using this

• CUDA 13.1 is now default not 12.9 anymore

• Moreover, I am coding newer apps to auto detect in more robust way CUDA and Visual Studio C++ Tools and MSVC even if they are not in expected paths

• I have removed Visual Studio Build Tools install requirements since now only installing Visual Studio Community Edition is sufficient

• Our first fully torch compile working app is with updated workflows and Torch 2.13 ACESTEP XL 1.5 premium app : https://www.patreon.com/posts/157675060

  • We have so significantly improved Torch Compile with ACE-STEP 1.5 XL read changelogs

• I have updated Visual Studio Commuity edition install part of this post with newer info and higher quality screenshots

• We have updated FFmpeg to latest version and installation instructions, moreover, I have added automatic FFmpeg installer bat file (you have to right click and run as administrator)

  • This bat file Install_FFmpeg_Latest.bat downloads and installs and setup FFmpeg latest and FFmpeg shared latest, see below FFmpeg section for more info

17 Feburary 2026 Update

• We have upgraded to cuDNN 9.19.10 and TensorRT 10.13.2 GA

• I have upgraded all links and screenshots

Visual Studio Build Tools

• We don't need Visual Studio Build Tools anymore, uninstall it like below if you have installed

• You can uninstall and do fresh install or update Visual Studio Community 2022

• Make sure that you have installed all below checkboxes, with modify button after update you can see

Visual Studio Community Edition

• Now we only need Visual Studio Community Edition. I recommend to uninstall first all existing Visual Studio Community Edition and Visual Studio Build Tools like above image

• Download Visual Studio Community edition install link 2022 : https://aka.ms/vs/17/release/vs_Community.exe

  • When running, right click and Run as Administrator

• Which checkboxes to check - Simply select all

• I am using Visual Studio 17.14.35 but you can use newer version too

• It may give you warning like below ignore and continue

Next We will add this folder to our system and user path - Important!

• C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC

  • Find the latest folder named like 14.44.35207

    • If you install 2026 edition of Visual Studio it may have newer name but i recommend 2022 at the moment

  • And find this folder \bin\Hostx64\x64

• So full path on my PC

  • C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64

Here screenshot

• Then add that path to both Environment Variables into System Variables Path and User Variables Path

  • We duplicate everything both in system and user path don't forget

• After click ok and close open a powershell (not cmd) and type below and see if working

• cl

Screenshot of cl result

CUDA Installation Both 12.9.1 and 13.1.1

• New preffered CUDA version is 13.1 not anymore 12.9.1

• If you want to uninstall older versions here how

• CUDA 12.9.1 download link for Windows 10 and Windows 11 :

  • https://developer.download.nvidia.com/compute/cuda/12.9.1/local_installers/cuda_12.9.1_576.57_windows.exe

• Alternative Link on Hugging Face

  • https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/cuda_12.9.1_576.57_windows.exe

• Install selection as below : CUDA_Install_New_September_2025.png

After installation restart PC

Then open a cmd and type nvcc --version and make sure you see as below

CUDA 13.1

1. CUDA 13.1 is now our preffered CUDA

2. Install with Custom (Advanced) and don't change any selections

3. CUDA 13.1.0 download link for Windows 10 and Windows 11 :

   • https://developer.download.nvidia.com/compute/cuda/13.1.1/local_installers/cuda_13.1.1_windows.exe

4. Alternative Link on Hugging Face

   • https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/cuda_13.1.1_windows.exe

You will see summary like below : CUDA_13.1_SUMMARY.png

System Variables As Below - 8 January 2026 : System_Variables_8_Jarnuary_2026.png

System Path Variables As Below - 8 January 2026 : System_Path_Variables_8_January_2026.png

User Path Variables As Below - 8 January 2026 : User_Path_Variables_8_January_2026.png

Installing cuDNN

• We are moving to cuDNN 9.19.0

  • \bin\12.9 will be default for now in CUDNN_PATH

• There is 1 extra path you need to add here don't forget that

• To download it use here https://developer.nvidia.com/cudnn-archive

  • Version changelogs : https://docs.nvidia.com/deeplearning/cudnn/backend/latest/release-notes.html

• Here direct download link : https://developer.download.nvidia.com/compute/cudnn/9.19.0/local_installers/cudnn_9.19.0_windows_x86_64.exe

• Here Hugging Face backup link : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/cudnn_9.19.0_windows_x86_64.exe

• We install as default

  • It is installed into here by default : C:\Program Files\NVIDIA\CUDNN

  • Therefore you have to manually add it into both Environment Variables into System Variables Path and User Variables Path

• The folder you need to add to the paths is \bin\12.9, \bin\13.1 and main folder

  • e.g. C:\Program Files\NVIDIA\CUDNN\v9.19\bin\12.9\x64

  • e.g. C:\Program Files\NVIDIA\CUDNN\v9.19\bin\13.1\x64

  • and C:\Program Files\NVIDIA\CUDNN\v9.19

Extra Path you have to add is CUDNN_PATH

Add it into System Variables directly like below

e.g. : Variable name : CUDNN_PATH

• \bin\12.9 will be default for now in CUDNN_PATH

Value : C:\Program Files\NVIDIA\CUDNN\v9.19\bin

Python 3.10, 3.11, 3.12 and 3.13 Download Links

• We are moving to Python 3.12.10 as preffered version - but still keep 3.10.11 at the top for older apps

• However, we still need to have Python 3.10.11 and 3.11.9 installed since some apps and libraries still requires them

• So have Python 3.10, 3.11, 3.12, 3.13 all installed - our apps will generate accurate venv folder and you won't have any issues

• Don't forget to install as in tutorial video directly into C drive with Python Launcher and don't forget to make Python 3.10.11 added to Environment Variables into System Variables Path and User Variables Path and set as top - check path variables screenshots at the very bottom of the post

  • Older apps still could be using your default Python

Make sure to select all options when installing, pip, tcl/tk and py launcher are mandatory to select

• 3.10.11: https://www.python.org/downloads/release/python-31011/

  • https://www.python.org/ftp/python/3.10.11/python-3.10.11-amd64.exe

• 3.11.9 : https://www.python.org/downloads/release/python-3119/

  • https://www.python.org/ftp/python/3.11.9/python-3.11.9-amd64.exe

• 3.12.10 (new preffered version) : https://www.python.org/downloads/release/python-31210/

  • https://www.python.org/ftp/python/3.12.10/python-3.12.10-amd64.exe

• 3.13.14 (this is the worst one right now least supported) : https://www.python.org/downloads/release/python-31314/

  • https://www.python.org/ftp/python/3.13.14/python-3.13.14-amd64.exe

FFmpeg Installation Automatic

• I have made automatic downloader and installer for FFmmpeg

  • This is optional and you need to run as administrator

  • This will download FFmpeg (9 static version) into C:\ffmpeg_latest and FFmpeg (8.1 shared version) into C:\ffmpeg_latest\lib

    • ffmpeg version n9.0.1-11-ge47273f4d9-20260903

  • Then it will set user and system path automatically that is why right click bat file and run as administrator

• Bat file link : Install_FFmpeg_Latest.bat

FFmpeg Installation Manual

FFmpeg Static Version Download Links

• https://github.com/BtbN/FFmpeg-Builds/releases

  • Use this specific version for now to not have any issues :

    • Windows : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/ffmpeg-n9.0-latest-win64-gpl-9.0.zip

    • Linux : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/ffmpeg-n9.0-latest-linux64-gpl-9.0.tar.xz

• Extract exe files into C:\ffmpeg_latest

  • Remember exe files that is located inside bin folder of the zip file

• Add C:\ffmpeg_latest into your both Environment Variables into System Variables Path and User Variables Path

• Then open a CMD and type ffmpeg and see like below

  • You will see ffmpeg version n9.0.1-11-ge47273f4d9-20260903 since we upgraded

• We also need shared FFmpeg dlls libraries for TorchAudio and TorchCodec

• Sometimes you may need to compile some stuff - libraries with FFmpeg

• This compile requires you to use shared version of the FFmpeg

• Shared version includes lib files so you can use its path for such specific cases if happens

• Windows : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/ffmpeg-n8.1-latest-win64-gpl-shared-8.1.zip

• Linux : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/ffmpeg-n8.1-latest-linux64-gpl-shared-8.1.tar.xz

Git Installation

• Download link : https://git-scm.com/install/windows

• Download and install just with next next next

• After installing add these 2 folder into your both Environment Variables into System Variables Path and User Variables Path

• C:\Program Files\Git\cmd

• C:\Program Files\Git\bin

Virtual RAM Setup

• You must setup at least 100 GB virtual RAM on your fastest drive

• Tutorial Windows 10 : https://www.windowscentral.com/how-change-virtual-memory-size-windows-10

• Tutorial Windows 11 : https://www.windowscentral.com/software-apps/windows-11/how-to-manage-virtual-memory-on-windows-11

• This is super important since when loading an AI model initially, virtual RAM may be used

• System_Settings_Virtual_RAM.png

System_Settings_Virtual_RAM_Part2.png

TensorRT Installation

• In some cases TensorRT is necessary therefore we will also download and install it

• Download link : https://developer.nvidia.com/tensorrt/download

• It requires a free NVIDIA account

• We are using TensorRT 10.13.2 GA

• Direct link : https://developer.nvidia.com/downloads/compute/machine-learning/tensorrt/10.13.2/zip/TensorRT-10.13.2.6.Windows.win10.cuda-12.9.zip

• Alternative link on Hugging Face : https://huggingface.co/MonsterMMORPG/Wan_GGUF/resolve/main/TensorRT-10.13.2.6.Windows.win10.cuda-12.9.zip?download=true

• Extract the zip file into C drive like C:\TensorRT_10_13_2_6 and enter inside \lib

• You must see nvinfer_10.dll and such files

• Now add this path C:\TensorRT_10_13_2_6\lib and this path C:\TensorRT_10_13_2_6 into your both Environment Variables into System Variables Path and User Variables Path

Enable Windows Long Paths

• Full article here : https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=registry#enable-long-paths-in-windows-10-version-1607-and-later

• Reg file just download and run : Enable_Windows_Long_Paths.reg

NodeJS Installation

• Also install NodeJS 22.20 since some apps need it like Ostris AI Toolkit

• When installing install all as default / next no changes

• Download link : https://nodejs.org/en/download

• Direct link : https://nodejs.org/dist/v22.20.0/node-v22.20.0-x64.msi

Fixing Triton Related Errors

• If you get Triton related errors we need to delete the Triton cache folder

  • e.g. C:\Users\Furkan\.triton

• So we clear whatever inside C:\Users\Furkan\.triton

• I made a bat file for this so use this zip file, extract anywhere and double click and execute the bat file - don't run any of my bat files as administrators

• Download clear cache zip file : Clear_Triton_Cache.zip

Example Compile Logs - For Advanced Users

• You will see which versions of what is used like this

• Advanced_Users_Example_Compile.png

• K Lite Mega Codec Pack Profile 9 Is Also Recommended

  • Select advanced option to get this screen

  • This is optional but useful tool

• https://codecguide.com/download_k-lite_codec_pack_mega.htm

Environment Variables Screenshots - Rememer Top To Bottom Order Matters

Updated 8 January 2028

Main Screen : System_Variables_8_Jarnuary_2026.png

User Path Variables : User_Path_Variables_8_January_2026.png

System Path Variables : System_Path_Variables_8_January_2026.png

How to Install Python, CUDA, cuDNN, C++ Build Tools, FFMPEG & Git Tutorial for AI Applications (YouTube)