## The problem

After running dagger init --sdk=go and then modifying the module's functions, the generated dagger.gen.go file still references the old default functions like ContainerEcho and GrepDir, producing compile errors. The file is generated code and hand-editing it just fights the tooling.

## What fixed it

Run dagger develop. It regenerates dagger.gen.go from the current module sources. This is now documented in the official docs, and the reporter confirmed the docs update resolved the question.