Exchange 2010 install failing on Server 2008

I am trying to install Exchange 2010 on a fresh install of Server 2008. I believe I have all of the server roles and features configured properly, however I am getting this error:

Summary: 12 item(s). 0 succeeded, 1 failed. Elapsed time: 00:04:07

Organization Preparation Failed

Error: The following error was generated when "$error.Clear();

      $acceptedDomains = @{};
      Get-AcceptedDomain | foreach {
          $domainName = $_.DomainName.ToString();
          if ($acceptedDomains.Contains($domainName)) {
              Write-ExchangeSetupLog -Warning "Duplicate AcceptedDomain found.  '$($acceptedDomains[$domainName])' and '$($_.Name)' both reference domain '$domainName'";
          } else {
              $acceptedDomains.Add($domainName, $_.Name);
          };
      };

      function getSmtpTemplates ([string]$property)
      {
          $input |
              Select-Object -ExpandProperty $property |
              Where-Object {$_.PrefixString -eq "SMTP"} |
              Foreach-Object {$_.AddressTemplateString -replace ".*@", ""};
      }


      function addDomains ([Microsoft.Exchange.Data.Directory.SystemConfiguration.AcceptedDomainType]$domainType)
      {
          $domain = $null;
          $input |
              Where-Object {-not $acceptedDomains.ContainsKey($_)} |
              Where-Object {[Microsoft.Exchange.Data.SmtpDomainWithSubdomains]::TryParse($_, [ref] $domain)} |
              Foreach-Object {
                  $name = $domain.ToString();
                  if ($name.Length -gt 64) { $name = $name.Substring(0, 64) };
                  if ($acceptedDomains.ContainsValue($name) ) {$name = [System.Guid]::NewGuid().ToString()};

                  new-AcceptedDomain -Name:$name -DomainName:$domain -DomainType:$domainType;
                  $acceptedDomains[$domain.ToString()] = $name;
              };
      }

      $emailAddressPolicies = Get-EmailAddressPolicy;
      $emailAddressPolicies | getSmtpTemplates "NonAuthoritativeDomains" | addDomains "InternalRelay";
      $emailAddressPolicies | getSmtpTemplates "EnabledEmailAddressTemplates" | addDomains "Authoritative";
    " was run: "The property value is invalid. The value can't contain leading or trailing whitespace. Property Name: Name".

The property value is invalid. The value can't contain leading or trailing whitespace. Property Name: Name Elapsed Time: 00:04:07

Any help would be greatly appreciated!