Issue with latest twitter source with connect UI in the latest landloop/fast-data-dev image

[jsing120]

Getting error while creating a new connector (its replicable even online in the demo) the logs as seen here https://fast-data-dev.demo.landoop.com/logs/connect-distributed.log

2019-06-16 19:13:02,780] INFO 127.0.0.1 - - [16/Jun/2019:19:13:02 +0000] "GET /connector-plugins/ HTTP/1.1" 200 5468  3 (org.apache.kafka.connect.runtime.rest.RestServer:60)
[2019-06-16 19:13:02,783] INFO 127.0.0.1 - - [16/Jun/2019:19:13:02 +0000] "GET /connectors HTTP/1.1" 200 15  1 (org.apache.kafka.connect.runtime.rest.RestServer:60)
[2019-06-16 19:13:03,063] ERROR Uncaught exception in REST call to /connector-plugins/com.eneco.trading.kafka.connect.twitter.TwitterSourceConnector/config/validate (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper:61)
org.apache.kafka.common.config.ConfigException: Must configure one of topics or topics.regex
	at org.apache.kafka.connect.runtime.SinkConnectorConfig.validate(SinkConnectorConfig.java:96)
	at org.apache.kafka.connect.runtime.AbstractHerder.validateConnectorConfig(AbstractHerder.java:269)
	at org.apache.kafka.connect.runtime.rest.resources.ConnectorPluginsResource.validateConfigs(ConnectorPluginsResource.java:81)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:76)
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:148)
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:191)
	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:243)
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:103)
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:493)
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:415)
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:104)
	at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
	at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:370)
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389)
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342)
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655)
	at org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:311)
	at org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:265)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
	at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:169)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:531)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
	at java.lang.Thread.run(Thread.java:748)
[2019-06-16 19:13:03,067] INFO 127.0.0.1 - - [16/Jun/2019:19:13:03 +0000] "PUT /connector-plugins/com.eneco.trading.kafka.connect.twitter.TwitterSourceConnector/config/validate HTTP/1.1" 500 75  10 (org.apache.kafka.connect.runtime.rest.RestServer:60)
[2019-06-16 19:13:03,06

[LeonardoBonacci]

idem!

[dawityifter]

Facing the same issue. @jsing120 Were you able to resolve?

[ocruces]

I have the same issue. Twitter sink connector works fine. If I change change topic property to topics I get the following error:

ERROR Uncaught exception in REST call to /connector-plugins/undefined/config/validate (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper:61)
org.apache.kafka.connect.errors.ConnectException: Failed to find any class that implements Connector and which name matches undefined, available connectors are: PluginDesc{...

Another strange thing is that the connector name doesn't appear at the top as when configuring other connectors:

[djgaston]

This issue has not been resolve in more than a year. Is Fast-Data-Dev alive?

[pratik502]

button is disabled and Angular error is coming when we modify properties infomation