Exception on PowerShell startup

[cyp0633]

Environment

PSReadLine: 2.2.0-beta1
PowerShell: 7.2.0-preview.6
OS: Microsoft Windows 10.0.19043
BufferWidth: 121
BufferHeight: 30

Last 0 Keys

Exception

System.TypeLoadException: Could not load type 'System.Management.Automation.Subsystem.PredictionResult' from assembly 'Microsoft.PowerShell.PSReadLine.Polyfiller, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
   at Microsoft.PowerShell.PSConsoleReadLine.PredictionViewBase.Reset()
   at Microsoft.PowerShell.PSConsoleReadLine.PredictionInlineView.Reset() in Microsoft.PowerShell.PSReadLine2.dll:token 0x60004a6+0x0
   at Microsoft.PowerShell.PSConsoleReadLine.Prediction.Reset() in Microsoft.PowerShell.PSReadLine2.dll:token 0x6000478+0x7
   at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics) in Microsoft.PowerShell.PSReadLine2.dll:token 0x60000f2+0x118
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken) in Microsoft.PowerShell.PSReadLine2.dll:token 0x60000eb+0x60

Steps to reproduce

Just updated PowerShell Preview to 7.2.0-preview.6 via Microsoft Store, and launched Windows Terminal. I did nothing else and then it went wrong.
Later I launched VS Code and the same information appeared in the Terminal window, except BufferWidth (216) and BufferHeight (10).

Expected behavior

I'm just expecting PowerShell to launch properly.

Actual behavior

The information above appeared and nothing else happened.

[daxian-dbw]

Thanks for reporting and using the preview version of PowerShell!
This is a duplicate of #2495. The powershell-7.2.0-preview.6 contains a release note for this:

PSReadLine 2.2.0-beta1 and 2.2.0-beta2 do not work with this preview of PowerShell due to breaking changes in the prediction interface. The upcoming PSReadLine 2.2.0-beta3 release will resolve this. Use PSReadLine 2.1.0 as the temporary workaround.

This was addressed by #2524. We will release 2.2.0-beta3 with this fix today or tomorrow.