VisualStudio：能否通过Ctrl+F12跳转至自有NuGet包内代码实现？

Absolutely, this is totally doable! The "The symbol has no implementations" error you're seeing usually comes down to missing or misconfigured symbol files for your custom package. Since you can already step through the code with F11, your debugger can access the symbols—we just need to make sure your IDE (I’m assuming Visual Studio here) can index those symbols properly for the "Go to Implementation" feature.

Here's how to fix it:

• Include symbol files in your NuGet package
  When building and packing your custom library, make sure you include .pdb symbol files alongside the DLL. You have two solid options here:

  1. Add the .pdb directly to the lib folder of your NuGet package during packing.
  2. Generate a dedicated symbol package (.snupkg) using the dotnet pack command with these flags: dotnet pack --include-symbols --include-source. Most private NuGet sources (like Azure Artifacts) support hosting .snupkg files, so confirm your DevOps source allows this setup.

• Add your private source to Visual Studio's symbol locations
  Open Visual Studio, head to Tools > Options > Debugging > Symbols. Click the + button and paste the URL of your private NuGet source. Many sources use the same URL for packages and symbols, but double-check your DevOps config if you hit snags. You can also check the box "Search the above locations only when symbols are loaded manually" to avoid unnecessary symbol searches during startup.

• Ensure symbols are loaded and "Just My Code" is disabled

  • During a debug session, open Debug > Windows > Modules, find your custom package's DLL, and check the "Symbol Status" column. If it says "Symbols loaded", you’re set. If not, right-click the DLL, select "Load Symbols", and point it to your private source.
  • Go to Tools > Options > Debugging > General and uncheck "Just My Code". This setting can block Visual Studio from accessing symbols for non-project (i.e., NuGet) assemblies, which is exactly what we don’t want here.

• Clear outdated symbol caches
  Visual Studio might be holding onto old, mismatched symbol files that throw off the "Go to Implementation" feature. In the Symbols options page, click "Empty Symbol Cache", then restart Visual Studio and reload your project. Also, double-check that you’re referencing the latest version of your NuGet package (with matching symbols) from your private source.

Once you’ve got these steps sorted, Ctrl+F12 should work just like it does for your local project code—you’ll jump straight to the implementation in your custom NuGet package.

内容的提问来源于stack exchange，提问作者Flutter