Package io/fs: unrecognized import path “io/fs” (import path does not begin with hostname)

The error message “unrecognized import path ‘io/fs'” occurs when importing the package “io/fs” because the import path does not begin with a hostname. This error is usually encountered in Go programming language.

In order to import a package in Go, the import path should begin with a valid hostname. The “io/fs” package is one of the standard packages provided by Go, but it was introduced in Go version 1.16. Therefore, if you are using a previous version of Go, you will encounter this error.

To resolve this error, you have the following options:

• Upgrade Go version: If you are using an older version of Go, you can upgrade to Go 1.16 or above to use the “io/fs” package without any issues.
• Use a Go module: If you are already using Go modules, you need to ensure that your project is initialized as a module. You can do this by running the command go mod init [module-name] in the root directory of your project. Once initialized, you should be able to import the “io/fs” package using the proper import path.
• Manually copy the package to your project: If you are unable to upgrade Go or use Go modules, you can manually copy the necessary files from the “io/fs” package into your project. This can be done by locating the package files in the Go source directory and copying them to your project directory. Remember to maintain the proper directory structure.

Here’s an example demonstrating how to use the “io/fs” package with Go modules:

        
            module example

            import (
                "io/fs"
                "fmt"
            )

            func main() {
                files, err := fs.ReadDir(os.DirFS("."))
                if err != nil {
                    fmt.Println(err)
                    return
                }

                for _, file := range files {
                    fmt.Println(file.Name())
                }
            }
        
    

Make sure to replace “example” with the desired module name in the go.mod file.