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Cannot dot-source this command because it was defined in a different language mode.
Microsoft.PowerShell_profile.ps1: Cannot dot-source this command because it was defined in a different language mode. To invoke this command without importing its contents, omit the '.' operator. I am getting this error when I open my PowerShell anywhere... I have few scripts present in my PS Profile, but this is failing with error, and I can't import, its blocking me to even set a property.
$Host.Name = 'Test'
InvalidOperation: Cannot set property. Property setting is supported only on core types in this language mode.
Can someone please help me to get rid of this issue. Thanks!
12 Replies
Hi, Ravi.
If you run the following command, does it show as FullLanguage or another value? (I'm guessing it may be ConstrainedLanguage.)
$ExecutionContext.SessionState.LanguageMode
Incidentally, Name is a read-only attribute on $Host, meaning that won't work anyway.
If you were looking to change the windows title, you need to change $Host.UI.RawUI.WindowTitle:
$Host.UI.RawUI.WindowTitle = "Foo";
Cheers,
Lain
LainRobertson - Yes, after some research, I also found that. It's in ConstrainedLanguage mode and not in FullLanguage. I am unable to change it to FullLanguage mode. Based on online articles, this will be temporary for the current session but for me it's everywhere and I am unable to change it.
Can you please help me to change it. Thanks!
- Here it says that it's activated automatically when Device Guard is enabled: https://devblogs.microsoft.com/powershell/powershell-constrained-language-mode/
Can you try disabling Device Guard and/or Applocker?
