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Deploying an External Content Type, Error: The default web application could not be determined

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I had this error today creating an External Content Type for Business Connectivity Services (BCS) in Visual Studio 2010. I had to get help resolving it so I wanted to share the resolution.

Error occurred in deployment step ‘Add Solution’: The default web application could not be determined. Set the SiteUrl property in feature BdcModelProject2_Feature1 to the URL of the desired site and retry activation.

Parameter name: properties

You can resolve this by editing the Feature1.feature file in Visual Studio 2010. Open the template and add a line to tell them what your web application is. Mine is called https://intranet.contoso.com

Add this line:     <Property Key="SiteUrl" Value="https://intranet.contoso.com/" />

So the full template now looks like this:

<?xml version="1.0" encoding="utf-8" ?>
<Feature xmlns="https://schemas.microsoft.com/sharepoint/">
  <Properties>
    <Property Key="GloballyAvailable" Value="true" />
    <Property Key="SiteUrl" Value="https://intranet.contoso.com/" />
  </Properties>
</Feature>