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System.InvalidOperationException: Queue Empty when doing PSConsoleReadLine.ReadKey() #5147

Description

@mbraca

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

[DBG]: PS C:\MtiFilm\dev\SANDBOX-B>> I don't u
Oops, something went wrong.  Please report this bug with the details below.
Report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new
### Environment
PSReadLine: 2.0.0
PowerShell: 5.1.26100.8457
OS: Microsoft Windows 10.0.26200
Last 69 Keys

 / c o l o r Enter
 c l a u s d Backspace Backspace d e Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace c e Spacebar Backspace Backspace d Spacebar \ m t i f Tab d e v Tab s Tab Tab Tab Shift+Tab Enter
 c l a u d e Enter
 I Spacebar d o n ' t Spacebar u


### Exception

System.InvalidOperationException: Queue empty.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.Queue`1.Dequeue()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadKey()
   at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken)


[DBG]: PS C:\MtiFilm\dev\SANDBOX-B>>
Oops, something went wrong.  Please report this bug with the details below.
Report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new
### Environment
PSReadLine: 2.0.0
PowerShell: 5.1.26100.8457
OS: Microsoft Windows 10.0.26200
Last 80 Keys

 / c o l o r Enter
 c l a u s d Backspace Backspace d e Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace c e Spacebar Backspace Backspace d Spacebar \ m t i f Tab d e v Tab s Tab Tab Tab Shift+Tab Enter
 c l a u d e Enter
 I Spacebar d o n ' t Spacebar u n d e r s t a n s d Escape


### Exception

System.InvalidOperationException: Queue empty.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.Queue`1.Dequeue()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadKey()
   at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken)

Screenshot

Image

Environment data

PS Version: 5.1.26100.8457
PS HostName: ConsoleHost (Windows Terminal)
PSReadLine Version: 2.0.0
PSReadLine EditMode: Windows
OS: 10.0.26100.1 (WinBuild.160101.0800)
BufferWidth: 120
BufferHeight: 61

Steps to reproduce

Randomly crashe on my first input after a compaction

Expected behavior

No exception

Actual behavior

The above exception happened. then when I tried to resume the conversation, I got this:

[DBG]: PS C:\MtiFilm\dev\SANDBOX-B>> claude --resume 1251e8d7-aaf0-45e2-8604-dff9aa3c8475
claude : Error: No deferred tool marker found in the resumed session. Either the session was not deferred, the marker
is stale (tool already ran), or it exceeds the tail-scan window. Provide a prompt to continue the conversation.
At line:1 char:1

  • claude --resume 1251e8d7-aaf0-45e2-8604-dff9aa3c8475
  •   + CategoryInfo          : NotSpecified: (Error: No defer...e conversation.:String) [], RemoteException
      + FullyQualifiedErrorId : NativeCommandError
    

Activity

  1. sharpchen commented on Jun 28, 2026

    @sharpchen
    Contributor

    update psreadline to latest version

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