How to Fix 'Build Constraints Exclude All Go Files' When Importing `golang.org/x/net/route`?

Resolving "Build Constraints Exclude All Go Files" Issue When Importing "golang.org/x/net/route"

Encountering the error message "build constraints exclude all Go files" upon importing "golang.org/x/net/route" can be frustrating. However, a simple solution exists to address this issue.

Go Clean Magic

In cases like these, invoking the "go clean -modcache" command frequently resolves the problem. This command flushes the Go module cache, allowing it to be rebuilt fresh.

To apply this fix using Visual Studio Code (VSCode):

1. Open Terminal: View > Terminal.
2. Navigate to your workspace directory.
3. Run the "go clean -modcache" command.
4. Save the file and rebuild your project.

Problem Solved

Once executed, the "go clean -modcache" command should eliminate the error message and allow you to import "golang.org/x/net/route" seamlessly.

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