# Error in Log Activity. Logger: ReadArrayTagsRequest **URL:** \ **Category:** Ignition\ **Created:** [November 4, 2016, 2:59pm UTC](https://forum.inductiveautomation.com/t/error-in-log-activity-logger-readarraytagsrequest/12328 "2016-11-04T14:59:33Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![casey.myers](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/casey.myers/32/80632_2.png) [@casey.myers](https://forum.inductiveautomation.com/u/casey.myers)\ **Post date:** [November 4, 2016, 2:59pm UTC](https://forum.inductiveautomation.com/t/error-in-log-activity-logger-readarraytagsrequest/12328/1 "2016-11-04T14:59:33Z")
Our Ignition Gateway Log Activity, for an Allen-Bradley 1756-L71, is throwing the following error ever second. Nonstop. Does anyone have any ideas as to why it is being thrown? I have tried researching the error, etc., but cannot find anything. See the additional information below. Screenshot attached Device: Allen-Bradley 1756-L71 Revision: 26.12 Logger: ReadArrayTagsRequest drivers.LogixDriver.Requests.ReadArrayTagsRequest java.lang.IndexOutOfBoundsException: Index: 11, Size: 8 at java.util.ArrayList.rangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.lambda$handleResponse$9(ReadArrayTagsRequest.java:144) at java.util.ArrayList.forEach(Unknown Source) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.handleResponse(ReadArrayTagsRequest.java:142) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.lambda$null$0(ReadArrayTagsRequest.java:85) at com.digitalpetri.enip.cip.services.MultipleServicePacketService.decodeResponse(MultipleServicePacketService.java:70) at com.digitalpetri.enip.cip.services.MultipleServicePacketService.decodeResponse(MultipleServicePacketService.java:18) at com.digitalpetri.enip.cip.CipClient.lambda$invokeConnected$0(CipClient.java:69) at java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source) at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source) at java.util.concurrent.CompletableFuture.postComplete(Unknown Source) at java.util.concurrent.CompletableFuture.complete(Unknown Source) at com.digitalpetri.enip.cip.CipClient$ConnectedDataHandler.itemsReceived(CipClient.java:249) at com.digitalpetri.enip.cip.CipClient.onUnitDataReceived(CipClient.java:218) at com.digitalpetri.enip.EtherNetIpClient.onChannelRead(EtherNetIpClient.java:168) at com.digitalpetri.enip.EtherNetIpClient.access$500(EtherNetIpClient.java:34) at com.digitalpetri.enip.EtherNetIpClient$EtherNetIpClientHandler.lambda$channelRead0$0(EtherNetIpClient.java:245) at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(Unknown Source) at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source) at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [November 4, 2016, 4:05pm UTC](https://forum.inductiveautomation.com/t/error-in-log-activity-logger-readarraytagsrequest/12328/2 "2016-11-04T16:05:25Z")
Every time I’ve seen this it’s been one or more Ignition tags that have been addressed at indices past the end of the true length of the array. ---
**Author:** ![casey.myers](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/casey.myers/32/80632_2.png) [@casey.myers](https://forum.inductiveautomation.com/u/casey.myers)\ **Post date:** [November 7, 2016, 2:46pm UTC](https://forum.inductiveautomation.com/t/error-in-log-activity-logger-readarraytagsrequest/12328/3 "2016-11-07T14:46:52Z")
Thank you for the reply! I will take a look at that and see if I can find anything. > [@Kevin.Herron](#): > > Every time I've seen this it's been one or more Ignition tags that have been addressed at indices past the end of the true length of the array. ---
**Author:** ![dhananjay\_vichare](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dhananjay_vichare/32/74712_2.png) [@dhananjay\_vichare](https://forum.inductiveautomation.com/u/dhananjay_vichare)\ **Post date:** [January 6, 2022, 12:57pm UTC](https://forum.inductiveautomation.com/t/error-in-log-activity-logger-readarraytagsrequest/12328/4 "2022-01-06T12:57:42Z")
Hello Kevin, Is there any way to find out the Ignition tag which has “ReadArrayTagsRequest” error logged in console, as I have lot of tags in Ignition. And tried to search with [73] which is the index number in the following log but not able to find the tag name. Could you please help me to trace this error? 7:16:51 AM ReadArrayTagsRequest Uncaught Throwable: Index: 73, Size: 32 java.lang.IndexOutOfBoundsException: Index: 73, Size: 32 at java.util.ArrayList.rangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.lambda$handleResponse$9(ReadArrayTagsRequest.java:140) at java.util.ArrayList.forEach(Unknown Source) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.handleResponse(ReadArrayTagsRequest.java:138) at com.inductiveautomation.xopc.drivers.logix.requests.ReadArrayTagsRequest.lambda$null$0(ReadArrayTagsRequest.java:81) at com.digitalpetri.enip.cip.services.MultipleServicePacketService.decodeResponse(MultipleServicePacketService.java:70) at com.digitalpetri.enip.cip.services.MultipleServicePacketService.decodeResponse(MultipleServicePacketService.java:18) at com.digitalpetri.enip.cip.CipClient.lambda$invokeConnected$0(CipClient.java:69) at java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source) at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source) at java.util.concurrent.CompletableFuture.postComplete(Unknown Source) at java.util.concurrent.CompletableFuture.complete(Unknown Source) at com.digitalpetri.enip.cip.CipClient$ConnectedDataHandler.itemsReceived(CipClient.java:249) at com.digitalpetri.enip.cip.CipClient.onUnitDataReceived(CipClient.java:218) at com.digitalpetri.enip.EtherNetIpClient.onChannelRead(EtherNetIpClient.java:168) at com.digitalpetri.enip.EtherNetIpClient.access$500(EtherNetIpClient.java:34) at com.digitalpetri.enip.EtherNetIpClient$EtherNetIpClientHandler.lambda$channelRead0$0(EtherNetIpClient.java:245) at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(Unknown Source) at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source) at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)