Hi I just tried this, and it worked as it should, I do not get an error. if you download the source : https://github.com/ccnet/CruiseControl.NET/zipball/master
and compile do you still have the error? with kind regards Ruben Willems On 10 April 2012 21:09, Jensen, Aaron <[email protected]> wrote: > We are trying to change our build’s schedule to fire every hour at x:15 > and x:45 using the cron trigger. Our Cron Expression looks like this:**** > > ** ** > > 15,30 * * * ***** > > ** ** > > Unfortunately, now our build server is puking out a metric ton of these > exceptions:**** > > ** ** > > [6:WARN] INTERNAL ERROR: Object reference not set to an instance of an > object.**** > > ----------**** > > System.NullReferenceException: Object reference not set to an instance of > an object.**** > > at ThoughtWorks.CruiseControl.Core.Triggers.CronTrigger.get_NextBuild() > **** > > at > ThoughtWorks.CruiseControl.Core.Triggers.MultipleTrigger.get_NextBuild()** > ** > > at > ThoughtWorks.CruiseControl.Core.Triggers.MultipleTrigger.get_NextBuild()** > ** > > at > ThoughtWorks.CruiseControl.Core.Project.CreateProjectStatus(IProjectIntegrator > integrator)**** > > at > ThoughtWorks.CruiseControl.Core.IntegrationQueueManager.GetProjectStatuses() > **** > > at > ThoughtWorks.CruiseControl.Core.IntegrationQueueManager.GetCruiseServerSnapshot() > **** > > at > ThoughtWorks.CruiseControl.Core.CruiseServer.<>c__DisplayClassb.<GetCruiseServerSnapshot>b__a(ServerRequest > )**** > > at > ThoughtWorks.CruiseControl.Core.CruiseServer.RunServerRequest(ServerRequest > request, Nullable`1 permission, Nullable`1 eventType, Action`1 action)**** > > ** ** > > Does anyone know what’s going on? I downloaded the source code for our > version (1.6.7981.1) and can’t see any variables in the NextBuild property > that could be null:**** > > ** ** > > public DateTime NextBuild**** > > {**** > > get**** > > {**** > > if (nextBuild == DateTime.MinValue)**** > > {**** > > SetNextIntegrationDateTime();**** > > }**** > > return nextBuild;**** > > }**** > > }**** > > ** ** > > I tried downloading the latest nightly build to see if that fixes it > (1.7.706.8065) and ccnet.exe never starts running any builds.**** > > ** ** > > Is the cron trigger broken? Am I doomed to use 48 schedule triggers? Is > there an alternative to the cron trigger?**** > > ** ** > > <:> Aaron**** > > ** ** >
