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I am currently trying to establish a connection between two Mendix apps so that we can use the data base from another app. I have successfully accessed the data hub from the app I am trying to pull data from and have added the external entities in m ydomain model. However, when I try and use the external attribute as a data source within my app, I am still receiving errors (see below) and the external data does not display. Any ideas what I could be missing?       Error log: An error has occurred while handling the request. [User 'MxAdmin' with session id '6d2842c9-XXXX-XXXX-XXXX-XXXXXXXX227a' and roles 'Administrator'] -------- com.mendix.webui.WebUIException: Exception while retrieving data for 'MyFirstModule.Trial_NewEdit.referenceSelector2' on document 'MyFirstModule.Trial_NewEdit'     at com.mendix.webui.actions.client.RetrieveAction.$anonfun$apply$3(RetrieveAction.scala:94) Caused by: com.mendix.core.CoreRuntimeException: Exception occurred in action '{"xpath":"//MyFirstModule.SolutionDomains","amount":-1,"offset":-1,"returnsCount":false,"sort":[{"memberName":"SolutionDomainID","direction":{}}],"type":"RetrieveXPathSchemaRawAction"}', all database changes executed by this action were rolled back     at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.processErrorState(CoreActionHandlerImpl.scala:153) Caused by: com.mendix.connectionbus.ConnectionBusRuntimeException: An exception has occurred for the following request(s):     InternalLimitedXPathTextGetRequest (depth = -1): //MyFirstModule.SolutionDomains     at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.scala:35) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: The OData endpoint returned 401 Unauthorized. Set log level to Trace to see the corresponding URI.     at com.mendix.integration.data.odata.CallWithRetry$.$anonfun$apply$2(CallWithRetry.scala:24)     at scala.Option.getOrElse(Option.scala:201)     at com.mendix.integration.data.odata.CallWithRetry$.giveUp$1(CallWithRetry.scala:22)     at com.mendix.integration.data.odata.CallWithRetry$.$anonfun$apply$4(CallWithRetry.scala:35)     at com.mendix.integration.data.odata.CallWithRetry$.apply(CallWithRetry.scala:43)     at com.mendix.integration.data.odata.ODataServiceRepositoryImpl.retrieveFeed(ODataServiceRepository.scala:34)     at com.mendix.integration.data.odata.ConsumedODataModule.$anonfun$handle$1(ConsumedODataModule.scala:23)     at com.mendix.integration.data.odata.ConsumedODataModule.handle(ConsumedODataModule.scala:43)     at com.mendix.integration.data.odata.ODataGetRequestHandler.handle(ODataGetRequestHandler.scala:21)     at com.mendix.integration.data.odata.LimitedDataSourceQueryHandler.handle(LimitedDataSourceQueryHandler.scala:32)     at com.mendix.connectionbus.retrieve.QueryRequestExecutor.executeRemoteQuery(QueryRequestExecutor.scala:79)     at com.mendix.connectionbus.retrieve.QueryRequestExecutor.executeQueriesForRemote(QueryRequestExecutor.scala:50)     at com.mendix.connectionbus.retrieve.QueryRequestExecutor.executeQueries(QueryRequestExecutor.scala:36)     at com.mendix.connectionbus.retrieve.QueryRequestExecutor.execute(QueryRequestExecutor.scala:26)     at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$processOqlGetRequest$1(DataStoreCaller.scala:35)     at scala.Option.map(Option.scala:242)     at com.mendix.connectionbus.retrieve.DataStoreCaller.processOqlGetRequest(DataStoreCaller.scala:32)     at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$getResult$1(DataStoreCaller.scala:26)     at scala.collection.StrictOptimizedIterableOps.flatMap(StrictOptimizedIterableOps.scala:118)     at scala.collection.StrictOptimizedIterableOps.flatMap$(StrictOptimizedIterableOps.scala:105)     at scala.collection.immutable.ArraySeq.flatMap(ArraySeq.scala:35)     at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:26)     at com.mendix.connectionbus.retrieve.GetRequestHandler.doOtherRequests(GetRequestHandler.scala:69)     at com.mendix.connectionbus.retrieve.GetRequestHandler.doRequest(GetRequestHandler.scala:29)     at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.scala:30)     at com.mendix.connectionbus.ConnectionBusImpl.doRequest(ConnectionBusImpl.scala:466)     at com.mendix.basis.action.user.RetrieveXPathSchemaRawAction.executeAction(RetrieveXPathSchemaRawAction.scala:126)     at com.mendix.basis.action.user.RetrieveXPathSchemaRawAction.executeAction(RetrieveXPathSchemaRawAction.scala:18)     at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:58)     at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71)     at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48)     at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.java:56)     at com.mendix.webui.RetrieveUtils.retrieveByXPathRaw(RetrieveUtils.scala:229)     at com.mendix.webui.RetrieveUtils.retrieveWithHasMore(RetrieveUtils.scala:194)     at com.mendix.webui.RetrieveUtils.retrieveByXPath(RetrieveUtils.scala:124)     at com.mendix.webui.actions.client.RetrieveAction.$anonfun$apply$3(RetrieveAction.scala:67)     at scala.util.Either.map(Either.scala:382)     at com.mendix.webui.actions.client.RetrieveAction.apply(RetrieveAction.scala:43)     at com.mendix.webui.actions.client.RetrieveAction.apply(RetrieveAction.scala:28)     at com.mendix.webui.actions.client.RegularClientAction$Helpers$.$anonfun$liftEither$1(RegularClientAction.scala:30)     at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.$anonfun$apply$4(RegularClientAction.scala:56)     at com.mendix.webui.requesthandling.helpers.StateHandling.withState(StateHandling.scala:45)     at com.mendix.webui.requesthandling.helpers.StateHandling.withState$(StateHandling.scala:42)     at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.withState(RegularClientAction.scala:46)     at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:54)     at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:46)     at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$3(RegularClientAction.scala:120)     at scala.util.Try$.apply(Try.scala:210)     at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2(RegularClientAction.scala:120)     at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2$adapted(RegularClientAction.scala:118)     at com.mendix.webui.requesthandling.helpers.ContextHandling.$anonfun$inContext$5(ContextHandling.scala:57)     at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)     at com.mendix.basis.actionmanagement.ActionMonitoring$.$anonfun$monitor$1(ActionMonitoring.scala:49)     at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)     at com.mendix.basis.actionmanagement.ActionMonitoring$.monitor(ActionMonitoring.scala:49)     at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:57)     at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:31)     at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:94)     at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:28)     at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:20)     at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:94)     at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$1(RegularClientAction.scala:118)     at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)     at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest(ProfileHandling.scala:14)     at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest$(ProfileHandling.scala:10)     at com.mendix.webui.actions.client.RegularClientAction.profileRequest(RegularClientAction.scala:94)     at com.mendix.webui.actions.client.RegularClientAction.execute(RegularClientAction.scala:115)     at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:106)     at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:79)     at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:37)     at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1(MxRuntimeConnector.scala:50)     at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1$adapted(MxRuntimeConnector.scala:50)     at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)     at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.scala:50)     at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.scala:232)     at com.mendix.m2ee.appcontainer.server.handler.RuntimeServlet.service(RuntimeServlet.scala:32)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)     at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)     at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1630)     at org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:170)     at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)     at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600)     at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:506)     at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)     at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571)     at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)     at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1378)     at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)     at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:463)     at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544)     at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)     at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1300)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)     at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)     at org.eclipse.jetty.server.Server.handle(Server.java:562)     at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505)     at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762)     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)     at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)     at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:319)     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)     at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)     at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:412)     at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:381)     at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:268)     at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:138)     at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:407)     at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:894)     at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1038)     at java.base/java.lang.Thread.run(Thread.java:829)  

asked 2023-04-13

2 answers