Exchange 2013 sp1 Update Install Error - Client Access role: Front End Transport service Failed

When installing the sp1 update for exchange 2013 we came across these errors:

    The following error was generated when "$error.Clear();
          $BEVdirIdentity = $RoleNetBIOSName + "\ECP (Exchange Back End)";
          $be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity
 $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyCo
ntinue;
          if ($be -eq $null)
          {
          new-EcpVirtualDirectory -Role Mailbox -WebSiteName "Exchange Back End"
 -DomainController $RoleDomainController;
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication
:$false -WindowsAuthentication:$true;
          }
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -
ExternalUrl $null;
          . "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1"
 -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
        " was run: "The virtual directory 'ecp' already exists under 'exchangeserver.domain.local/Exchange Back End'.
Parameter name: VirtualDirectoryName".

     The following error was generated when "$error.Clear();
          $BEVdirIdentity = $RoleNetBIOSName + "\ECP (Exchange Back End)";
          $be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity
 $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyCo
ntinue;
          if ($be -eq $null)
          {
          new-EcpVirtualDirectory -Role Mailbox -WebSiteName "Exchange Back End"
 -DomainController $RoleDomainController;
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication
:$false -WindowsAuthentication:$true;
          }
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -
ExternalUrl $null;
          . "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1"
 -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
        " was run: "The operation couldn't be performed because object 'exchangeserver
\ECP (Exchange Back End)' couldn't be found on 'dcserver.domain.local'.".

     The following error was generated when "$error.Clear();
          $BEVdirIdentity = $RoleNetBIOSName + "\ECP (Exchange Back End)";
          $be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity
 $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyCo
ntinue;
          if ($be -eq $null)
          {
          new-EcpVirtualDirectory -Role Mailbox -WebSiteName "Exchange Back End"
 -DomainController $RoleDomainController;
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication
:$false -WindowsAuthentication:$true;
          }
          set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -
ExternalUrl $null;
          . "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1"
 -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
        " was run: "The operation couldn't be performed because object 'exchangeserver
\ECP (Exchange Back End)' couldn't be found on 'dcserver.domain.local'.".

I have not been able to find any information on the cause of these errors, any help would be appreciated.