System Details

• Operating System
  Windows 10
• VS Code version
  1.40.2
• PowerShell extension version
  2019110
• Output from $PSVersionTable
  7.0.0-preview.6
  5.1.18362.145

Issue Description

I am experiencing a problem with running a PowerShell debug configuration.
"PowerShell: Launch a Script"
If I do not open a ps1 file first the debugger will time out waiting for PowerShell to start.
Error: Timed out waiting for the PowerShell extension to start.

Repro Instructions

Open VSCode
Open a Folder with a launch.json and a PowerShell Script
Note: DO NOT open any POWERSHELL scripts
Open the debugger Control + Shift + D
Launch a configuration PowerShell Launch a script.

Expected Behaviour

The Launch should Run

Actual Behaviour

Error: Timed out waiting for the PowerShell extension to start.

Work around

Open a PowerShell script in the editor
Extension starts PowerShell
Run the debug configuration.
It will now work.