Set-PSReadLineOption : A parameter cannot be found that matches parameter name 'PredictionSource'

[DBremen]

Environment

PS version: 5.1.19041.610
PSReadline version: 2.2.0-beta1
os: 10.0.19041.1 (WinBuild.160101.0800)
PS file version: 10.0.19041.1 (WinBuild.160101.0800)
HostName: ConsoleHost
BufferWidth: 190
BufferHeight: 5000

Exception report

Set-PSReadLineOption : A parameter cannot be found that matches parameter name 'PredictionSource'.

Steps to reproduce

In PowerShell 5.1 with PSReadline 2.2.0-beta1
Attempt to set 'PredictionSource' setting

Expected behavior

PredictionSource aka predictive IntelliSense should be available in 2.2.0-beta1 with PowerShell 5.1.

Actual behavior

Error message as described in title.
I feel, that I'm missing something obvious, but I can't get it to work. In PowerShell 7 on the same machine, it does work just fine.

[DBremen]

I got it to work eventually by manually removing all older versions of PSReadline on my machine.

[Luttik]

@DBremen How did you ensure that all old versions are removed?

[DBremen]

@Luttik I just delete the respective folders that I found using Everything. You might be able to do it via PowerShell, too: Get-InstalledModule -Name psreadline -AllVersions | Uninstall-Module

[Neilblaze]

Maybe the issue is being caused by these two lines —

Set-PSReadLineOption -PredictionViewStyle ListView
Set-PSReadLineOption -PredictionViewStyle InlineView

[codeunitone]

I do not use the option PredictionViewStyle and getting the same error with PS 5.1

[gwojan]

I do not use the option PredictionViewStyle and getting the same error with PS 5.1

If you upgrade PSReadLine to the latest beta version from the PowerShell Gallery your issues should be resolved.

[eabase]

To install latest Beta release, open Admin CMD:

cd C:\Program Files\PowerShell\7
pwsh.exe -noprofile -command "Install-Module PSReadLine -Force -AllowPrerelease -SkipPublisherCheck"

(Note: Apparently no need to uninstall the older version.)

[PStoreGR]

I have the same problem so i try to put
Set-PSReadLineOption -PredictionSource History
Set-PSReadLineOption -PredictionViewStyle ListView
in my user_profile.ps1 and it work properly :)

[johannmoraes]

You need install pre release:

Install-Module -Name PSReadLine -AllowPrerelease -Scope CurrentUser -Force -SkipPublisherCheck

Restart terminal and try again.

[kevinlinxc]

Ok I actually ran into like 4 different errors, this thread was just the first. I compiled everything into an article:
https://kevinlinxc.medium.com/how-hard-could-installing-autocomplete-for-powershell-be-4c8a2cbc69be

[JxDarkAngel]

I had a similar problem, I did the following:

• Run terminal as admin
• Install-Module PowerShellGet -Force
• Log out and start terminal as admin
• Update-Module PowerShellGet -Force
• Install-Module -Name PSReadLine -AllowPrerelease -Scope CurrentUser -Force -SkipPublisherCheck
• Set-PSReadLineOption -PredictionSource History

Reference and more info in
https://kevinlinxc.medium.com/how-hard-could-installing-autocomplete-for-powershell-be-4c8a2cbc69be

[muhammadFawzy]

I'm still hitting same error, do I still need to use -AllowPrerelease , seems risky.