CheckRemoteFx45 Target failing

I'm performing a Web Deploy of a provider-hosted SharePoint app using Visual Studio 2013.

When publishing (rightclick, and publish), I get the error

Error 4 The "CheckRemoteFx45" task could not be loaded from the assembly C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v12.0\Web\Microsoft.Web.Publishing.Tasks.dll.  Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.  0 0 ProviderAppWeb

Microsoft.Web.Publishing.Tasks.dll exists.

The targets file contains

<UsingTask TaskName="CheckRemoteFx45" AssemblyFile="Microsoft.Web.Publishing.Tasks.dll"/>

 <!--********************************************************************-->
    <!-- Target _CheckRemoteFx45-->
    <!--********************************************************************-->
    <Target Name="_CheckRemoteFx45" Condition="'$(TargetFrameworkVersion)' == 'v4.5' and $(_Enable45Check) != 'false'">
      <CheckRemoteFx45 Condition="'$(MsDeployServiceUrl)' != ''"
        ServiceUrl="$(MsDeployServiceUrl)">
       </CheckRemoteFx45>
    </Target>

Can i safely disable this check?

Jørgen

Jorgen