Runtimes Copy Exception

Curtis Chau

Updated: August 2, 2026

Download IronQR

• NuGet Download
• DLL Download

• ---

• Start Free Trial

Copy for LLMs

• Copy for LLMs

  Copy page as Markdown for LLMs
  # Runtimes Copy Exception This error is caused in some rare cases where the DLLs for our special ML model are not copied over properly. In the solution below, you can solve this one-time error. ```txt IronQrDetection.Exceptions.IronQrRuntimesCopyException : Machine learning DLLs were not successfully automatically copied from the runtimes directory. This may occur on various operating systems or frameworks. Please follow the steps in the following article to resolve this issue: https://ironsoftware.com/csharp/qr/troubleshooting/runtimes-copy-exception/ ``` ## Solution 1. **Locate the `runtimes` Folder:** Navigate to the `runtimes` folder in your solution. This can be found at `/bin/Debug/net6.0/runtimes` (replace `Debug` with your current configuration and `net6.0` with your target framework if it differs). 2. **Copy the Necessary Files:** Within the `/runtimes/` directory, you'll find subdirectories for all supported platforms and operating systems. Enter the directory that pertains to your operating system and manually copy the necessary files to the output directory: `/bin/Debug/net6.0/`. ```bash # Example bash command to copy files on Unix-like systems cp /bin/Debug/net6.0/runtimes/<your-platform>/* /bin/Debug/net6.0/ ``` ```shell # Example PowerShell command to copy files on Windows systems Copy-Item -Path .\bin\Debug\net6.0\runtimes\<your-platform>\* -Destination .\bin\Debug\net6.0\ ``` > Ensure that you replace `<your-platform>` with the appropriate directory that matches your platform (e.g., `win-x64`, `osx-x64`, `linux-x64`, etc.). 3. **Rebuild and Test:** After the necessary files are copied, rebuild your project to verify that the issue is resolved. The correct DLLs should now be available for the ML model to function.

• ---

• Open in ChatGPT

  Ask ChatGPT about this page
• Open in Gemini

  Ask Gemini about this page
• Open in Grok

  Ask Grok about this page
• Open in Perplexity

  Ask Perplexity about this page

Share

• Share on Facebook
• Share on X (Twitter)
• Share on LinkedIn

• ---

• Email article

This error is caused in some rare cases where the DLLs for our special ML model are not copied over properly. In the solution below, you can solve this one-time error.

IronQrDetection.Exceptions.IronQrRuntimesCopyException : Machine learning DLLs were not successfully automatically copied from the runtimes directory. This may occur on various operating systems or frameworks. Please follow the steps in the following article to resolve this issue: https://ironsoftware.com/csharp/qr/troubleshooting/runtimes-copy-exception/

IronQrDetection.Exceptions.IronQrRuntimesCopyException : Machine learning DLLs were not successfully automatically copied from the runtimes directory. This may occur on various operating systems or frameworks. Please follow the steps in the following article to resolve this issue: https://ironsoftware.com/csharp/qr/troubleshooting/runtimes-copy-exception/

Solution

1. Locate the runtimes Folder: Navigate to the runtimes folder in your solution. This can be found at /bin/Debug/net6.0/runtimes (replace Debug with your current configuration and net6.0 with your target framework if it differs).

2. Copy the Necessary Files: Within the /runtimes/ directory, you'll find subdirectories for all supported platforms and operating systems. Enter the directory that pertains to your operating system and manually copy the necessary files to the output directory: /bin/Debug/net6.0/.

   # Example bash command to copy files on Unix-like systems
   cp /bin/Debug/net6.0/runtimes/<your-platform>/* /bin/Debug/net6.0/

   SHELL
   # Example PowerShell command to copy files on Windows systems
   Copy-Item -Path .\bin\Debug\net6.0\runtimes\<your-platform>\* -Destination .\bin\Debug\net6.0\

   SHELL

   Ensure that you replace <your-platform> with the appropriate directory that matches your platform (e.g., win-x64, osx-x64, linux-x64, etc.).

3. Rebuild and Test: After the necessary files are copied, rebuild your project to verify that the issue is resolved. The correct DLLs should now be available for the ML model to function.

Curtis Chau

Chat with engineering team now

Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

...

Read More