hyperledger/fabric · error

Error uploading input to container: %s

Error message

Error uploading input to container: %s

What it means

DockerBuild copies the chaincode code package tar into the ephemeral container at /chaincode/input via client.CopyToContainer. This error means the upload failed, so the builder cannot see the sources to compile. The docker API error is embedded via %s.

Source

Thrown at core/chaincode/platforms/util/utils.go:115

			Cmd:          []string{"/bin/sh", "-c", opts.Cmd},
			Image:        opts.Image,
		},
	})
	if err != nil {
		return fmt.Errorf("Error creating container: %s", err)
	}
	defer client.ContainerRemove(context.Background(), container.ID, dcli.ContainerRemoveOptions{})

	// -----------------------------------------------------------------------------------
	// Upload our input stream
	// -----------------------------------------------------------------------------------
	_, err = client.CopyToContainer(context.Background(), container.ID, dcli.CopyToContainerOptions{
		DestinationPath:           "/chaincode/input",
		Content:                   opts.InputStream,
		AllowOverwriteDirWithFile: true,
	})
	if err != nil {
		return fmt.Errorf("Error uploading input to container: %s", err)
	}

	// -----------------------------------------------------------------------------------
	// Attach stdout buffer to capture possible compilation errors
	// -----------------------------------------------------------------------------------
	cw, err := client.ContainerAttach(context.Background(), container.ID, dcli.ContainerAttachOptions{
		Stream: true,
		Stdout: true,
		Stderr: true,
		Logs:   true,
	})
	if err != nil {
		return fmt.Errorf("Error attaching to container: %s", err)
	}

	// -----------------------------------------------------------------------------------
	// Launch the actual build, realizing the Env/Cmd specified at container creation
	// -----------------------------------------------------------------------------------

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Inspect the embedded docker error for the copy failure cause
2. Verify the code package InputStream is a valid, readable tar
3. Ensure the builder image contains /chaincode/input and stays alive during the copy
4. Re-create the container and retry the build

if opts.InputStream == nil {
    return fmt.Errorf("InputStream (code package tar) must be provided")
}
if _, err := opts.InputStream.Seek(0, io.SeekEnd); err != nil {
    return fmt.Errorf("input stream unreadable: %w", err)
}
opts.InputStream.Seek(0, io.SeekStart)

if err != nil && strings.Contains(err.Error(), "Error uploading input") {
    logger.Errorf("CopyToContainer failed: %s — verify tar validity and container liveness", err)
    return err
}

When it happens

Trigger: CopyToContainer errors: container not running/stopped, /chaincode/input path issues, broken or unreadable InputStream (code package tar), or daemon I/O failure.

Common situations: Corrupt chaincode package streams, destination path conflicts on the builder image, or the container exiting immediately after creation due to a bad image entrypoint.

Related errors

• Failed to inject "%s": %s
• Error creating container: %s
• Error attaching to container: %s
• failed to wait on container exit
• Error uploading files to the container instance %s: %s

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/70ce6d8f6f64b10f. Report an issue: GitHub.