<p>Is there a way to disallow publishing of debug builds with ClickOnce?</p>

<p>I only want to allow release builds through, but right now human error causes a debug build to slip through once in a while.  </p>

<p>We're publishing the build from within Visual Studio.</p>

One thing you can do is add a condition to the .csproj or .vbproj file that MSBuild will check when doing a build.
The condition would check if a publish is occurring and check if the build is a debug build, then do something like run an external tool or otherwise interrupt the build process or cause it to fail.
An example might be something like this:
```
```
<Choose>
    <When Condition=" '$(Configuration)'=='Debug' ">
        <Exec Command="C:\foo.bat" ContinueOnError="false" />
    </When>
 </Choose>
```
```
Where foo.bat is a batch file that return non-zero, thus stopping the publish from occurring.