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PowerShell 7.6.2.0 startup error #5164
Description
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
Please report this bug with ALL the details below, including both the 'Environment' and 'Exception' sections.
Please report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new?template=Bug_Report.md
Thank you!
### Environment
PSReadLine: 2.2.0-beta1
PowerShell: 7.6.2
OS: Microsoft Windows 10.0.26220
BufferWidth: 120
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.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 cannot run the script on 7.2.6
PS Version: 5.1.26100.8544
PS HostName: ConsoleHost
PSReadLine Version: 2.0.0
PSReadLine EditMode: Windows
OS: 10.0.26100.7934 (WinBuild.160101.0800)
BufferWidth: 120
BufferHeight: 9001Screenshot
Environment data script will not run.
Environment data
Cannot runSteps to reproduce
Just install and run as administrator/
Expected behavior
run with command line ready for input
Actual behavior
just run it and is fails never completely starts
Activity
github-actions commentedon Jun 5, 2026
This issue was fixed in 2.2.0-beta3 version of PSReadLine. You can fix this by upgrading to the latest 2.3.5 version of PSReadLine.
To upgrade, simply run
Install-Module PSReadLine -AllowPrerelease -Forcefrom your PowerShell console.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:
pwsh -noprofile -noninteractiveto startpwshwithout loading PSReadLineUninstall-Module -Name PSReadLine -RequiredVersion <2.2.0-beta1 or 2.2.0-beta2> -AllowPrereleaseto remove the module. Or, you can manually remove that module folder.