Take this as an example:
$var = "one","two","three"
0..2 | select-object $var[$_]
Index operation failed; the array index evaluated to null.
At line:1 char:27
+ 0..2 | select-object $var[ <<<< $_]
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : NullArrayIndex
Why is $_ a null?
I can’t figure why you are using select-object
try this: