Erroraaction in uploading file by FTP - powershell

Question

I have a file with IP address of servers. And script reads adress ($line) by adress, but sometimes can occur address of server that will be down. It is necessary to script steel run till end of IP address. So I used -Erroraction Continue to Set_FTPConnection But script break anyway. How to solve this problem?
foreach ($line in $FTPServer)
{
Start-Transcript -Path $results
Write-Host -Object "ftp url: $line"
Set-FTPConnection -Credentials $FTPCredential -Server $line -Session MySession -UsePassive -ErrorAction Continue
$Session = Get-FTPConnection -Session MySession
$Session>>.\sessions.txt
#Write-Host $Error[0]
if($session.UsePassive -eq "True"){$connect="OK"}
else{$connect="FAIL"}
foreach ($item in (Get-ChildItem .\Upload))
{
#Get-FTPChildItem -Session $Session -Path /htdocs #-Recurse
Write-Host -Object "Uploading $item..."
$Send= Add-FTPItem -Session $Session -Path $FTPPlace -LocalPath .\Upload\$item -Overwrite -ErrorAction Continue #>> .\up.txt #.\Upload\test.txt
$item|gm >>.\up.txt
if($Send.Name -eq $item.Name){$Rec="OK"}
else{$Rec="!!!-FAIL-!!!"}
$array = $line, $item, $connect, $Rec
$FailTable=New-Object -TypeName PSObject -Property ([ordered]#{"FTP Server"=$array[0]; "File"=$array[1];"Connected"=$array[2];"Uploaded"=$array[3]})
Add-Content .\stats.txt $FailTable
}
Stop-Transcript
}
Errors:
From my code
Transcript started, output file is .\logs.txt
ftp url: 10.80.59.173
Set-FTPConnection : Exception calling "GetResponse" with "0" argument(s): "Unable to connect to the remote server"
At F:\DPI FTP\FTPUpload_v2.ps1:25 char:13
+ Set-FTPConnection -Credentials $FTPCredential -Server $li ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
+ FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Set-FTPConnection
With Test-NetConnection
Start-Transcript : Transcription cannot be started.
At F:\DPI FTP\FTPUpload_v2.ps1:21 char:9
+ Start-Transcript -Path $results #if $session.usepa ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [Start-Transcript], PSInvalidOperationException
+ FullyQualifiedErrorId : CannotStartTranscription,Microsoft.PowerShell.Commands.StartTranscriptCommand
ftp url: 10.80.59.173
Test-NetConnection : The term 'Test-NetConnection' is not recognized as the name of a cmdlet, function, script file, or operable program. Ch
eck the spelling of the name, or if a path was included, verify that the path is correct and try again.
At F:\DPI FTP\FTPUpload_v2.ps1:23 char:13
+ If (Test-NetConnection $line -Port '21')
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Test-NetConnection:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
Transcript started, output file is .\logs.txt
ftp url: 10.80.59.170
Test-NetConnection : The term 'Test-NetConnection' is not recognized as the name of a cmdlet, function, script file, or operable program. Ch
eck the spelling of the name, or if a path was included, verify that the path is correct and try again.
At F:\DPI FTP\FTPUpload_v2.ps1:23 char:13
+ If (Test-NetConnection $line -Port '21')
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Test-NetConnection:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
With If:
WARNING: Could not connect to 10.80.59.173
Start-Transcript : Transcription cannot be started.
At F:\DPI FTP\FTPUpload_v2.ps1:20 char:9
+ Start-Transcript -Path $results #if $session.usepa ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [Start-Transcript], PSInvalidOperationException
+ FullyQualifiedErrorId : CannotStartTranscription,Microsoft.PowerShell.Commands.StartTranscriptCommand
Stop-Transcript : An error occurred stopping transcription: The host is not currently transcribing.
At F:\DPI FTP\FTPUpload_v2.ps1:47 char:9
+ Stop-Transcript
+ ~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [Stop-Transcript], PSInvalidOperationException
+ FullyQualifiedErrorId : InvalidOperation,Microsoft.PowerShell.Commands.StopTranscriptCommand

Answer 1

Continue is actually the default setting. It means that if a non-terminating error occurs, it will show the error and then should be continuing with the command and rest of the script. You could try SilentlyContinue to see if that helps.
Alternatively you could test if the IP Address is connectable first. If you're using Windows 8/Server 2012 or newer and PowerShell v4+ you could use Test-NetConnection -Port 21 to do this specifically for the FTP port, if not you could use Test-Connection instead (which is a PS equivalent of Ping):
foreach ($line in $FTPServer)
{
Start-Transcript -Path $results
Write-Host -Object "ftp url: $line"
If (Test-Connection $line) {
Set-FTPConnection -Credentials $FTPCredential -Server $line -Session MySession -UsePassive -ErrorAction Continue
$Session = Get-FTPConnection -Session MySession
$Session>>.\sessions.txt
#Write-Host $Error[0]
if($session.UsePassive -eq "True"){$connect="OK"}
else{$connect="FAIL"}
foreach ($item in (Get-ChildItem .\Upload))
{
#Get-FTPChildItem -Session $Session -Path /htdocs #-Recurse
Write-Host -Object "Uploading $item..."
$Send= Add-FTPItem -Session $Session -Path $FTPPlace -LocalPath .\Upload\$item -Overwrite -ErrorAction Continue #>> .\up.txt #.\Upload\test.txt
$item|gm >>.\up.txt
if($Send.Name -eq $item.Name){$Rec="OK"}
else{$Rec="!!!-FAIL-!!!"}
$array = $line, $item, $connect, $Rec
$FailTable=New-Object -TypeName PSObject -Property ([ordered]#{"FTP Server"=$array[0]; "File"=$array[1];"Connected"=$array[2];"Uploaded"=$array[3]})
Add-Content .\stats.txt $FailTable
}
Stop-Transcript
} Else {
Write-Warning "Could not connect to $line"
}
}