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'

[andrehe001]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues, especially the pinned issues.

Exception report

### Environment
PSReadLine: 2.2.0-beta2
PowerShell: 7.2.0
OS: Microsoft Windows 10.0.19042
BufferWidth: 160
BufferHeight: 9001

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()
   at Microsoft.PowerShell.PSConsoleReadLine.Prediction.Reset()
   at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics)
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken)

### Screenshot

![PS_Exepction_Screenshot](https://user-images.githubusercontent.com/13762183/141436390-2628ac76-1ff7-4640-952d-56411da9cc6e.jpg)


### Environment data

```console
### Environment
PSReadLine: 2.2.0-beta2
PowerShell: 7.2.0
OS: Microsoft Windows 10.0.19042
BufferWidth: 160
BufferHeight: 9001

Steps to reproduce

Installed Powershell 7.2.0. Running it either stand-alone or with Terminal

Expected behavior

No exepction

Actual behavior

The above exeption happens everytime running Powershell 7.2.0

[FabienDehopre]

I have the same issue after upgrading to PowerShellCore 7.2.0 as well.

Environment

PSReadLine: 2.2.0-beta2
PowerShell: 7.2.0
OS: Microsoft Windows 10.0.22000
BufferWidth: 120
BufferHeight: 30

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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()
   at Microsoft.PowerShell.PSConsoleReadLine.Prediction.Reset()
   at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics)
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken)

I did rollback to PowerShellCore 7.1.5

[iSazonov]

No need to rollback. You should update PSRL to latest Beta4 version.

[FabienDehopre]

No need to rollback. You should update PSRL to latest Beta4 version.

Thanks for the advice @iSazonov

[ojpitre]

I have the same issue this morning after upgrading to PowerShell 7.2.0

Environment

PSReadLine: 2.2.0-beta2
PowerShell: 7.2.0
OS: Microsoft Windows 10.0.22000
BufferWidth: 155
BufferHeight: 90

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()
   at Microsoft.PowerShell.PSConsoleReadLine.Prediction.Reset()
   at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics)
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken)

[daxian-dbw]

This issue was fixed in 2.2.0-beta3 version of PSReadLine. You can fix this by upgrading to the latest 2.2.0-beta4 version of PSReadLine. Instructions for doing so:

1. stop all instances of pwsh.
2. from cmd.exe run: pwsh -noprofile -command "Install-Module PSReadLine -AllowPrerelease -Force"

---

If you want to remove that beta version of PSReadLine and use the 2.1.0 version of PSReadLine that's shipped with PowerShell 7.2, you can:

1. run pwsh -noprofile -noninteractive to start pwsh without loading PSReadLine
2. run Uninstall-Module -Name PSReadLine -RequiredVersion <2.2.0-beta1 or 2.2.0-beta2> -AllowPrerelease to remove the module. Or, you can manually remove that module folder.

[ojpitre]

This issue was fixed in 2.2.0-beta3 version of PSReadLine. You can fix this by upgrading to the latest 2.2.0-beta4 version of PSReadLine. Instructions for doing so:

1. stop all instances of pwsh.
2. from cmd.exe run: pwsh -noprofile -command "Install-Module PSReadLine -AllowPrerelease -Force"

If you want to remove that beta version of PSReadLine and use the 2.1.0 version of PSReadLine that's shipped with PowerShell 7.2, you can:

1. run pwsh -noprofile -noninteractive to start pwsh without loading PSReadLine
2. run Uninstall-Module -Name PSReadLine -RequiredVersion <2.2.0-beta1 or 2.2.0-beta2> -AllowPrerelease to remove the module. Or, you can manually remove that module folder.

Upgrading to the latest 2.2.0-beta4 version of PSReadLine fixed the bug for me.

Cheers.