jenkins  v2.107.3 config Build after other projects are built 

java.lang.NullPointerException
   at jenkins.triggers.ReverseBuildTrigger.stop (ReverseBuildTrigger.java:196)
   at hudson.model.AbstractProject.submit (AbstractProject.java:1805)
   at hudson.model.Project.submit (Project.java:225)
   at hudson.model.Job.doConfigSubmit (Job.java:1354)
   at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:772)
   at java.lang.invoke.MethodHandle.invokeWithArguinents (MethodHandle.java:ô25)
   at org.kohsuke.stapler.Function$MethodFunction.invoke (Function.java:343)
   at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke (RequirePOST.java:77)
   at org.kohsuke.stapler.PrelnvokelnterceptedFunction.invoke (PrelnvokelnterceptedFunction.java:20)
   at org.kohsuke.stapler.Function.bindAndlnvoke (Function.java:184)
   at org.kohsuke.stapler.Function.bindAndlnvokeAndServeResponse (Function.java:117)
   at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.j aya :129)
   at org.kohsuke.stapler.NameBasedDispatcher.dispatch (NameBasedDispatcher.java:58)
   at org.kohsuke.stapler.Stapler.trylnvoke (Stapler.jaya:715)