notifications-email appian service will not start in 18.3

0312.service_manager.log

Windows 10, 64-Bit

I'm using the quick start installation guide to install Appian 18.3. I have my long-term Appian license and it does not expire until 2019.

When I run the command start.bat -p <password> -s all in my APPIAN_HOME, all Appian services start up right away except for notifications-email.

I've attached my service_manager.log file. I can't move forward until service manager completes and it is unclear why the email portion is hung up.

Snippet from service_manager.log

2018-09-04 00:09:05,295 [KomodoEventBus-40] INFO com.appian.komodo.engine.connection.NettyKConnection - Attempting to open connection to notifications-email
2018-09-04 00:09:05,297 [KomodoEventBus-40] INFO com.appian.komodo.engine.connection.NettyKConnection - Attempting to get latest transaction id for notifications-email
2018-09-04 00:09:05,399 [KomodoEventBus-40] WARN com.appian.komodo.engine.connection.NettyKConnection - Failed to connect to notifications-email. Retrying in 5000 milliseconds.
java.util.NoSuchElementException: com.appian.komodo.engine.invoker.KApi$1
at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1098) ~[netty-all-4.1.16.Final.jar:4.1.16.Final]
at io.netty.channel.DefaultChannelPipeline.remove(DefaultChannelPipeline.java:437) ~[netty-all-4.1.16.Final.jar:4.1.16.Final]
at com.appian.komodo.engine.invoker.KInvoker.invokeK(KInvoker.java:61) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.invoker.KApi.getLatestTransactionId(KApi.java:116) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.connection.NettyKConnection.openChannel(NettyKConnection.java:161) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.connection.NettyKConnection.awaitKConnection(NettyKConnection.java:129) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.connection.NettyKConnection.connect(NettyKConnection.java:103) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.EngineComponentService.initializeServices(EngineComponentService.java:373) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.EngineComponentService.buildEngineComponent(EngineComponentService.java:259) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.EngineComponentService.lambda$onStartEngine$5(EngineComponentService.java:246) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.EngineEvent.ifMatches(EngineEvent.java:21) ~[core-1.103.6.jar:1.103.6]
at com.appian.komodo.engine.EngineComponentService.onStartEngine(EngineComponentService.java:246) ~[core-1.103.6.jar:1.103.6]
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:95) ~[guava-19.0.jar:1.103.6]
at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:154) ~[guava-19.0.jar:1.103.6]
at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:80) ~[guava-19.0.jar:1.103.6]
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:456) ~[guava-19.0.jar:?]
at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:76) ~[guava-19.0.jar:1.103.6]
at com.google.common.eventbus.SubscriberOrderedAsyncEventBus$EventAndSubscriber.directlyDispatchNextEvent(SubscriberOrderedAsyncEventBus.java:168) ~[core-1.103.6.jar:1.103.6]
at com.google.common.eventbus.SubscriberOrderedAsyncEventBus$PerTargetQueuedDispatcher.lambda$createWorker$2(SubscriberOrderedAsyncEventBus.java:119) ~[core-1.103.6.jar:1.103.6]
at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:176) ~[metrics-core-3.1.2.jar:3.1.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_171]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_171]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]