Why Is My Go Package Not Found in GOROOT?

Go Package Not Found in GOROOT

In the Go programming language, "package package1 is not in GOROOT (/usr/local/go/src/package1)" indicates that the specified package cannot be located within the standard library or specified GOPATH.

To resolve this error, consider the following solutions:

1. Ensure Correctly Configured Environment Variables:

• Verify the value of $GOPATH and ensure it's set to a directory outside of $GOROOT.
• Confirm that $GOROOT is set to the correct path where Go is installed.
• Make sure $GO111MODULE is set to "on".

2. Use go get to Retrieve the Package:

• Navigate to your project directory where the error occurs.
• Run the command go get -u package1, which will attempt to retrieve the missing package from a public repository.

3. Check Import Paths in Code:

• Ensure that the import path in your code (e.g., "package1") matches the package name specified in the package directory.
• Verify that the package files are located in the correct directory structure.

4. Import from a Local Package:

• If the package is not in a public repository, ensure it's accessible from your local file system.
• Create a go.mod file in the package directory if it's missing.
• Use an absolute import path to reference the local package, e.g., "github.com/your-username/project/package1".

5. Use go install to Install the Package Locally:

• Navigate to the package directory.
• Run the command go install, which will build and install the package locally.
• The installed package can be imported using the import path specified in the go.mod file.

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