portainer/portainer · error

Invalid Compose file. Ensure that the Compose file is upload

Error message

Invalid Compose file. Ensure that the Compose file is uploaded correctly

What it means

Error "Invalid Compose file. Ensure that the Compose file is uploaded correctly" thrown in portainer/portainer.

Source

Thrown at api/http/handler/stacks/create_compose_stack.go:356

func createStackPayloadFromComposeFileUploadPayload(name string, fileContentBytes []byte, env []portainer.Pair) stackbuilders.StackPayload {
	return stackbuilders.StackPayload{
		Name:             name,
		StackFileContent: fileContentBytes,
		Env:              env,
	}
}

func decodeRequestForm(r *http.Request) (*composeStackFromFileUploadPayload, error) {
	payload := &composeStackFromFileUploadPayload{}
	name, err := request.RetrieveMultiPartFormValue(r, "Name", false)
	if err != nil {
		return nil, errors.New("Invalid stack name")
	}
	payload.Name = name

	composeFileContent, _, err := request.RetrieveMultiPartFormFile(r, "file")
	if err != nil {
		return nil, errors.New("Invalid Compose file. Ensure that the Compose file is uploaded correctly")
	}
	payload.StackFileContent = composeFileContent

	var env []portainer.Pair
	err = request.RetrieveMultiPartFormJSONValue(r, "Env", &env, true)
	if err != nil {
		return nil, errors.New("Invalid Env parameter")
	}
	payload.Env = env
	return payload, nil
}

// @id StackCreateDockerStandaloneFile
// @summary Deploy a new compose stack from a file
// @description Deploy a new stack into a Docker environment specified via the environment identifier.
// @description **Access policy**: authenticated
// @tags stacks
// @security ApiKeyAuth

View on GitHub (pinned to 17e74456ff)

When it happens

Trigger: Thrown at api/http/handler/stacks/create_compose_stack.go:356 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of portainer/portainer@17e74456ff (2026-08-26). Data as JSON: /api/errors/0874483090d739c6. Report an issue: GitHub.