juicedata/juicefs · error

Failed to get current file path: %s

Error message

Failed to get current file path: %s

What it means

Thrown during WinFsp registry service registration when os.Executable() fails to resolve the path of the running juicefs binary. The wrapper function needs the executable path to write the 'Executable' value into the WinFsp launch service registry key. If Windows cannot determine the current process path, registration aborts so no half-configured service is left behind.

Source

Thrown at pkg/winfsp/winfs.go:1227

			return fmt.Errorf("Failed to open registry key: %s", err)
		}
	}
	defer k.Close()

	err = k.SetStringValue("CommandLine", cmdLine)
	if err != nil {
		return fmt.Errorf("Failed to set registry key: %s", err)
	}

	securityDescriptor := winfspSecurityDescriptor
	err = k.SetStringValue("Security", securityDescriptor)
	if err != nil {
		return fmt.Errorf("Failed to set registry key: %s", err)
	}

	filePath, err := os.Executable()
	if err != nil {
		return fmt.Errorf("Failed to get current file path: %s", err)
	}

	err = k.SetStringValue("Executable", filePath)
	if err != nil {
		return fmt.Errorf("Failed to set registry key: %s", err)
	}

	err = k.SetDWordValue("JobControl", 1)
	if err != nil {
		return fmt.Errorf("Failed to set registry key: %s", err)
	}

	if logPath != "" {
		err = k.SetStringValue("Stderr", logPath)
		if err != nil {
			return fmt.Errorf("Failed to set registry key: %s", err)
		}
	} else {

View on GitHub (pinned to c9a67b23e8)

Solutions

1. Ensure the juicefs.exe binary is not deleted or renamed while it is running; copy it to a stable local path before mounting.
2. Re-run the mount from a normal local disk location (e.g. C:\Program Files\JuiceFS\juicefs.exe).
3. Check disk/AV software that may quarantine or move the running executable.
4. Retry the mount command after restoring the binary; os.Executable() errors are usually transient.

Example fix

// before (binary replaced while running)
juicefs.exe mount redis://... X:
// after (stable install path)
copy juicefs.exe C:\Tools\juicefs.exe
C:\Tools\juicefs.exe mount redis://... X:

if _, err := os.Executable(); err != nil { return fmt.Errorf("cannot resolve executable path: %w", err) }

if err := mountViaWinFsp(...); err != nil && strings.Contains(err.Error(), "Failed to get current file path") { /* restore/relocate the binary and retry */ }

When it happens

Trigger: Calling the WinFsp mount path (mount as a Windows service via updateWinFspRegService) when os.Executable() returns an error — e.g. the executable was deleted or renamed while running, the binary lives on a removed/unavailable network drive, or the process was started in an unusual way that loses the module path.

Common situations: Running juicefs.exe from a temp directory and deleting/replacing it mid-run; starting the binary from a network share that dropped; exotic launch mechanisms (some installers/services) that obscure the executable path.

Understand the failure class

Background: "File not found" and ENOENT errors: why libraries can't find a file that should exist — this error's family across 50 libraries.

Related errors

• Mount point %s cannot be an existing folder
• Parent directory %s of mount point %s does not exist
• Failed to create registry key: %s
• Failed to open registry key: %s
• Failed to set registry key: %s

AI-assisted analysis of juicedata/juicefs@c9a67b23e8 (2026-09-06). Data as JSON: /api/errors/c4fc5ac9fa84ec46. Report an issue: GitHub.