How to fix powershell expression which causes error later in the code - powershell

Question

I am trying to follow this example in order to attach images to an email with powershell. Here is the part of the code that behaves strange:
if ($DirectoryInfo) {
foreach ($element in $DirectoryInfo) {
$failedTest = $element| Select-Object -Expand name
$failedTests += $failedTest
$failedTestLog = "$PathLog\$failedTest.log"
$logContent = [IO.File]::ReadAllText($failedTestLog)
$imageDir = "$PathLog\$element\Firefox\*"
$imageSearch = Get-ChildItem -Path $imageDir -Include *.png -Recurse -Force
$imageFullname = $imageSearch | select FullName | Select-Object -Expand Fullname
$imageFilename = $imageSearch | Select-Object -Expand name
$imageFilename
$imageFullname
# *** THE FOLLOWING LINE CAUSES THE ERROR ***
$attachment = New-Object System.Net.Mail.Attachment –ArgumentList $imageFullname.ToString() # *** CAUSING ERROR ***
#$attachment.ContentDisposition.Inline = $True
#$attachment.ContentDisposition.DispositionType = "Inline"
#$attachment.ContentType.MediaType = "image/jpg"
#$attachment.ContentId = '$imageFilename'
#$msg.Attachments.Add($attachment)
$outputLog += "
********************************************
$failedTest
********************************************
$logContent
"
}
} else {
$outputLog = '** No failed tests **'
}
# Create the Overview report
$outputSummary = ""
foreach ($element in $scenarioInfo) {
if (CheckTest $failedTests $element) {
$outputSummary += "
$element : FAILED" # *** ERROR LINE ***
} Else {
$outputSummary += "
$element : Passed"
}
}
If I comment out the line which defines the attachment, the code works fine. If I use the code as it is, I get the following error:
Unexpected token ':' in expression or statement.
At D:\Testing\Data\Powershell\LoadRunner\LRmain.ps1:112 char:11
+ $element : <<<< FAILED"
+ CategoryInfo : ParserError: (::String) [], ParseException
+ FullyQualifiedErrorId : UnexpectedToken
which refers to the line at the bottom of the script where it says "ERROR LINE". What the heck is going on? The behavior look completely illogical to me! I don't understand how a statement, which has no effect at all, can cause an error elsewhere! What is the problem and how to fix it...?
Also it does not matter if I use $imageFullname or $imageFullname.ToString() in the offending line.

Answer 1

Try to replace "$element : FAILED" by
"$element` : FAILED"
The reverse quote will escape the semicolon; which has a specific meaning in PowerShell. (It allows to output subproperty : $env:username for example)

Answer 2

Define the $outputSummary as Array:
$outputSummary = #()
instead of
$outputSummary = ""