Invoke-Expression : The term 'Invoke-Expression' is not recognized

[Rutix]

Hi,

Sorry if there is already an issue with the following problem but I couldn't find it.
I downloaded cmder ( https://github.com/bliker/cmder/releases/download/v1.2/cmder.7z ) and extracted it to my disk. But when I try to start cmder it refuses to open a working powershell tab.

I sometimes get the following error but not always:

Invoke-Expression : The term 'Invoke-Expression' is not recognized as the name of a cmdlet, function, script
file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is
correct and try again.
At line:1 char:1
+ Invoke-Expression '. ''E:\cmder\vendor\conemu-maximus5\..\profile.ps1'''
+ ~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Invoke-Expression:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

The cmd task works fine and starting powershell manually (by starting powershell.exe) also seems to work fine. Is this a known problem? If so how can I fix this?

I am running Windows 8.1 fully updated by windows update.