Theia UI Fails to Open: Due to Terminal Error - 'Couldn't attach - can't find terminal with id: 780554076

[Ashishh0007]

Hi,

We have been encountering persistent issues while running Theia using yarn start. Specifically, we frequently receive the following error message in the debugger mode:

"Couldn't attach - can't find terminal with id: 780554076"

This issue has been recurring for the past few months, and we have been unable to resolve it. Below are the key observations and steps we've attempted:

Error Details:

1. The error message appears consistently when starting Theia in debugger mode and few of the times when starting the Theia using yarn start.
2. The error "Couldn't attach - can't find terminal with id: " causes the Theia UI to fail to load.
3. Additional errors (as seen in the attached screenshot) appear every time we attempt to debug or run the application.

Impact:

Whenever this error occurs, the Theia UI does not open, blocking our workflow.

Steps to Reproduce:

• Run Theia using yarn start.
• Start Theia in debugger mode.
• Observe the terminal/logs for the errors.

We have tried troubleshooting this issue internally but have not been able to find a solution. We are looking for guidance or suggestions to resolve this problem and ensure the UI loads properly.

Environment Details:

• OS: Windows
• Theia Version: 1.55.0
• Debugger: VS Code

Attached below is a screenshot of the error messages we are receiving. We would greatly appreciate any help or guidance from the community to resolve this issue.

Thank you for your time and assistance! Let us know if additional details or logs are required.