FailOnError does not work in custom NAnt task

I have custom NAnt task for test purposes and I would like to cancel NAnt build process if the task is failed. I have created custom ErrorTask:

[NAnt.Core.Attributes.TaskName("errorTask")]
public class ErrorTask : NAnt.Core.Task
{
    public ErrorTask()
    {
        FailOnError = true;
    }

    protected override void ExecuteTask()
    {
        Log(NAnt.Core.Level.Error, "Error!");
    }
}

Here is what I have in NAnt build file:

<target name="errorTarget"> 
    <errorTask failonerror="true" />
    <errorTask failonerror="true" />
</target>

In the result (build.log) I have:

errorTarget:
[errorTask] Error!
[errorTask] Error!
BUILD SUCCEEDED - 2 non-fatal error(s), 0 warning(s)
Total time: 0 seconds.

So, I can see that second task is also run, but I would like to cancel it, because first call returns "Error!". Could you assist me to fix it?

Also, I assume, that it is not nece开发者_Python百科ssary to hardcode FailOnError value, it should be enough to use just failonerror attribute in build script, but it does not work for me in any case.

Thank you.

---

You need to let an exception bubble out of your ExecuteTask function. After your log statement, add this line:

throw new BuildException("Something terrible has happened!");