How to Resolve 'conflicts with same file imported from GOPATH' Errors in Google App Engine?

"conflicts with same file imported from GOPATH" issue with Google Go AppEngine

Importing code in Google AppEngine proves challenging when you also want to run unit tests. This conflict arises when trying to use the absolute import path of a file in a sub-folder package, but it is not located directly under the project root directory.

The issue stems from AppEngine's scanning mechanism that automatically initializes and imports files, leading to a duplicate import of the same file. Additionally, running tests will fail if the file is imported using its absolute path but is not found in the GOPATH.

To resolve this issue, two options are available:

Option 1:

• Avoid using the full import path for sub-folder packages. Instead, only include the file names, excluding the "source repository" part of the path. This ensures that AppEngine does not import the file, and eliminates the conflict.
  
  
• Note: This method may introduce some limitations and platform-specific dependencies.

Option 2:

1. Move the sub-folder packages to a separate and independent project with its own code repository. This project should not contain an app.yaml file and should not be located as a subdirectory within the main project.
   
   
2. Import the code from the separate project using the full import path. This method allows for easier dependency management and avoids clashes during testing.

By adhering to either of these approaches, you can effectively manage dependencies and ensure the seamless execution of unit tests while still utilizing Google AppEngine.

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