TeamCity Step to trigger other builds that are dependent on current one

TriggerBuilds.ps1

function TriggerBuilds($buildIds) {
    foreach($buildId in $buildIds) {
        try {
            $request = [System.Net.WebRequest]::Create("http://localhost:8111/httpAuth/app/rest/buildQueue")
            $request.PreAuthenticate = $true
            $request.Method = "POST"
            $request.ContentType = "application/xml"
            $request.Credentials = new-object system.net.networkcredential("%TeamCity_UserName%", "%TeamCity_Password%")
            $encoding = new-object System.Text.ASCIIEncoding
            IF("%teamcity.build.branch%" -eq "master"){
                $data = $encoding.GetBytes("<build><buildType id = `"" + $buildId + "`"/></build>")
            } ELSE {
                $data = $encoding.GetBytes("<build><buildType id = `"" + $buildId + "`"/><properties><property name = `"teamcity.build.branch`" value = `"%teamcity.build.branch%`"/></properties></build>")
            }
            $request.ContentLength = $data.Length;
            $requestStream = $request.GetRequestStream()
            $requestStream.Write($data, 0, $data.Length)
            $requestStream.Close()
            $response = $request.GetResponse().GetResponseStream()
            $sr = New-Object System.IO.StreamReader($response) 
            $respTxt = $sr.ReadToEnd()
            [System.Xml.XmlDocument] $result = $respTxt
            [String] $rs = $result.DocumentElement.OuterXml
            Write-Host "$($rs)";
        } catch {
            $errorStatus = "Exception Message: " + $_.Exception.Message;
            Write-Host $errorStatus;
        }
    }
}

IF ("%SemiVersion%" -eq ""){
    TriggerBuilds %Trigger_Builds%
}