Catch a specific exception using PowerShell

Question

I am trying to catch a specific exception using PowerShell. Please see below example:

try {
    throw [System.IO.FileNotFoundException]
}
catch [System.IO.FileNotFoundException] {
    "File not found"
}
catch {
    "Exception type: $($_.Exception.GetType().Name)"
}

Output from this code is: Exception type: RuntimeException

The output I am expecting is: "File not found"

What am I doing wrong here?

Mathias R. Jessen · Accepted Answer · 2022-02-17 12:32:25Z

3

You can't throw <typeName>. You need to throw an instance of an exception type.

Change the throw statement to:

throw [System.IO.FileNotFoundException]::new("Failed to find that file you asking for", "<attempted file name/path goes here>")

answered Feb 17, 2022 at 12:32

Mathias R. Jessen

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