App Fails to Launch on Device with "closed" Error

Original Created Jan 13, 2018 | Regeneration Apr 22, 2026

I'm experiencing issues when trying to debug my application on both a connected Samsung TV device and emulator. The only environment where it works is the web simulator. The error message I receive is:

Launching <project> has encountered a problem.closed 
closed

I've already:

  1. Created a Tizen Certificate
  2. Followed all necessary steps for launching on device
  3. Tried with both my imported project and sample apps (HelloTizen)

Additional details:

  • The log panels are empty, making it difficult to diagnose
  • The same issue occurs with multiple applications

Where can I find more detailed logs to troubleshoot this problem?

Problem Understanding

The "closed closed" error typically occurs when:

  1. There's a version mismatch between the Tizen Studio and TV firmware
  2. The certificate/profile setup is incomplete or incorrect
  3. The TV developer mode isn't properly configured

Solution Methods

  1. Verify Version Compatibility

    • Check your TV model and confirm its Tizen OS version
    • Ensure your application's target version matches the TV's OS version
    • For NU7100 (2018 model), use Tizen 4.0 applications
  2. Complete Certificate Setup

    • Recreate your certificate following the official documentation
    • Ensure the certificate is properly registered on your TV
    • Verify the certificate is selected in your project properties
  3. Check Developer Mode

    • Confirm Developer Mode is enabled on your TV
    • Verify the TV is properly connected to the same network as your development machine
    • Try restarting both the TV and Tizen Studio
  4. Access Detailed Logs

    • Use sdb dlog command in terminal to view device logs
    • Check Tizen Studio's Error Log view (Window → Show View → Error Log)
    • Look for logs in /var/log/ on the TV using sdb shell

Additional Tips

  • Try creating a new basic project to test if the issue persists
  • Ensure your TV's firmware is up to date
  • Consider trying with a different USB cable if using wired connection
  • The Samsung Developer Forum has similar cases that might help: Samsung Developer Forum

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