Why does this error not catch?

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This topic contains 2 replies, has 2 voices, and was last updated by

3 years, 4 months ago.

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  • #28826

    Points: 0
    Rank: Member

    This first line in the try block won't get caught and gives me the associated error, but if I switch out those lines it will get caught by my catch. Why is that?

    new-alias start "thisshouldntwork"
    Catch { Write-Output "ERROR" }

  • #28827

    Points: 1,704
    Helping HandTeam Member
    Rank: Community Hero

    Because most cmdlets don't generate a trappable, terminating exception by default. See "The Big Book of PowerShell Error Handling" (free, Resources menu here to find the ebooks). Essentially, you need to probably add the -ErrorAction parameter.

    Some cmdlets also *never* generate a trappable, terminating exception. That's in the cmdlet design, and there's not much you can do about it.

  • #28828

    Points: 0
    Rank: Member

    Ah, good to know, thanks, I'll check out that book.

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