If my courier.config file contains one repo, it works fine:

    <repository name="http://stage.sctflash.com" alias="http://stagesctflashcom" type="CourierWebserviceRepositoryProvider" visible="true">
        <url>http://stage.sctflash.com</url>;
        <user>0</user>
    </repository>

But if I had a second one, I get the following error:

The response failed with an empty response. The config looks like this:

    <repository name="http://stage.sctflash.com" alias="http://stagesctflashcom" type="CourierWebserviceRepositoryProvider" visible="true">
        <url>http://stage.sctflash.com</url>;
        <user>0</user>
    </repository>

<repository name="http://sctflash.com" alias="http://sctflashcom" type="CourierWebserviceRepositoryProvider" visible="true">
  <url>http://sctflash.com</url>;
  <user>0</user>
</repository>