Summary

Classes do not display on the App Explorer.

Error Messages

788 [WebContainer:9] [STANDARD] [ ] (terface.service.NonBlockingAPI) ERROR  - Error occurred while creating response
com.pega.pegarules.pub.PRRuntimeException: Received non blocking service request but AsyncServiceManager is not initialized. Check if prconfig setting 'asyncservices/enable' is set to 'true'.
at com.pega.pegarules.session.internal.engineinterface.service.NonBlockingAPI.registerServiceRequestsAndWait(NonBlockingAPI.java:658) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.engineinterface.service.NonBlockingAPI.processRequest(NonBlockingAPI.java:160) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:889) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:331) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:274) ~[prprivate.jar:?]
at com.pega.pegarules.session.internal.engineinterface.etier.ejb.EngineBean.invokeEngine(EngineBean.java:225) ~[prprivate.jar:?]
at sun.reflect.GeneratedMethodAccessor101.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) ~[?:127.0.0.1]
at java.lang.reflect.Method.invoke(Method.java:508) ~[?:127.0.0.1]
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:370) ~[prbootstrap.jar:127.0.0.1]
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:411) ~[prbootstrap.jar:127.0.0.1]
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:224) ~[prbootstrap-api.jar:127.0.0.1]
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingException(AppServerBridgeToPega.java:246) ~[prbootstrap-api.jar:127.0.0.1]
at com.pega.pegarules.internal.etier.ejb.EngineBeanBoot.invokeEngine(EngineBeanBoot.java:168) ~[prbeans.jar:127.0.0.1]
com.pega.pegarules.internal.etier.interfaces.EJSLocalStatelessEngineBMT_f2439d86.invokeEngine(EJSLocalStatelessEngineBMT_f2439d86.java) ~[?:127.0.0.1]
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:275) ~[prpublic.jar:?]
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:220) ~[prpublic.jar:?]
at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:749) ~[prwebj2ee.jar:?]
at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:413) ~[prwebj2ee.jar:?]
at sun.reflect.GeneratedMethodAccessor204.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) ~[?:127.0.0.1]
at java.lang.reflect.Method.invoke(Method.java:508) ~[?:127.0.0.1
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:370) ~[prbootstrap.jar:127.0.0.1]

Steps to Reproduce

1. Log in to the Dev Studio
2. Click the App Explorer. Classes do not display, instead, 'Loading' message displays 

Root Cause

Resolution

1. Set the prconfig/ayncservices/enable/default and prconfig/server-push/enabled/default Dynamic System Setting (DSS) values to True
2. Restart the server by clearing the Pega Temp folder content