title: Weblogic SingletonService on a standalone server
body: <p>Is it possible to run weblogic's SingletoneService on none clustered environment? I've tried and got this: </p>
  
  <pre><code>&lt;30.10.2012 18:25:57&gt; &lt;Error&gt; &lt;Deployer&gt; &lt;BEA-149202&gt; &lt;Encountered an exception while attempting to commit the 1 task for the application 'myApplication'.&gt; 
  &lt;30.10.2012 18:25:57&gt; &lt;Warning&gt; &lt;Deployer&gt; &lt;BEA-149004&gt; &lt;Failures were detected while initiating deploy task for application 'myApplication'.&gt; 
  &lt;30.10.2012 18:25:57&gt; &lt;Warning&gt; &lt;Deployer&gt; &lt;BEA-149078&gt; &lt;Stack trace for message 149004
  weblogic.management.DeploymentException: 
      at weblogic.application.internal.flow.SingletonServicesFlow.activate(SingletonServicesFlow.java:67)
      at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
      at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
      at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
      at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:16)
      Truncated. see log file for complete stacktrace
  java.lang.IllegalArgumentException: Cannot add Singleton Service DemoSingleton as SingletonServicesManager not started.  Check if MigrationBasis for cluster is configured.
      at weblogic.cluster.singleton.SingletonServicesManager.addConfiguredService(SingletonServicesManager.java:280)
      at weblogic.cluster.singleton.SingletonServicesManager.addConfiguredService(SingletonServicesManager.java:297)
      at weblogic.application.internal.flow.SingletonServicesFlow.activate(SingletonServicesFlow.java:65)
      at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
      at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
      Truncated. see log file for complete stacktrace
  &gt; 
  </code></pre>
  
  <p>Of course i don't have a configured MigrationBasis for cluster as i don't have cluster. But i thought it's possible to make it run both on cluster and on standalone server. Am i wrong or may be there are some other errors with SingletoneService that can lead to this error </p>