TorchSharp: This application or script uses TorchSharp but doesn't contain a reference to libtorch-cpu-11.3-win-x64, Version=1.11.0.1

Having some trouble using Torchsharp in a C# .Net 4.8 project. I’d show you some source code but this is as far as i’ve gotten:

TryInitializeDeviceType(TorchSharp.DeviceType.CPU); Replacing this code with any other code from Torchsharp-library creates the same result and error.

I’m using the Torchsharp-cpu nuget package, and I’ve tried using Torchsharp with the libtorch-cpu-11.3-win-x64 package and its dependencies as well without any luck.

My packages.config includes these: <package id="libtorch-cpu" version="1.13.0.1" targetFramework="net48" /> <package id="libtorch-cpu-linux-x64" version="1.13.0.1" targetFramework="net48" /> <package id="libtorch-cpu-osx-x64" version="1.13.0.1" targetFramework="net48" /> <package id="libtorch-cpu-win-x64" version="1.13.0.1" targetFramework="net48" /> And I’ve tried using the exact 1.11.0 version with no luck as well.

Not really sure how to proceed to make it work here.

About this issue

Original URL
State: closed
Created a year ago
Comments: 36 (32 by maintainers)

Most upvoted comments

For now, I’m going to add a runtime check that we’re running in 64-bit mode before trying to load DLLs. That should at least help by generating a more directly understandable error message. Still won’t address the core issue.

NiklasGustafsson on Feb 15, 2023

These steps I already tried but I love to hear if this worked for all you.

This worked in my test project!

mfagerlund on Feb 15, 2023

Here is how you can try to work around the issue with the old projects:

Clean your project from old, referenced packages. I mean in the NuGet package manager, uninstall all referenced NuGet packages (like TorchSharp and TorchSharp-cpu).
delete the file packages.config
try to change the Default Package Management option in the Options UI to PackageReference
Right click on your project in the solution explorer and choose clean
manually go to NuGet manager in your project and start adding the dependencies on the packages TorchSharp and TorchSharp-cpu.
Compile and run.

These steps I already tried but I love to hear if this worked for all you.

tarekgh on Feb 15, 2023

Yeah, it’s VS / dotnet that’s not copying all the transitive dependencies (TorchSharp is there, but not all the libtorch DLLs), so if you do a clean, it’s going to make the same mistake again.

NiklasGustafsson on Feb 14, 2023

a fresh solution should work?

Just do a clean of the obj + bin folders. Remove the TorchSharp-cpu package dependency and add it back in. If there’s some weird setting to not copy transitive dependencies (I don’t think there is, I have never heard of one), make sure that it’s not set.

NiklasGustafsson on Feb 14, 2023