# Connect IoT Manager / Message Bus issue

**URL:** <https://community.criticalmanufacturing.com/t/connect-iot-manager-message-bus-issue/633>\
**Category:** Integrations\
**Tags:** v10.2, equipment\
**Created:** [July 13, 2024, 7:11am UTC](https://community.criticalmanufacturing.com/t/connect-iot-manager-message-bus-issue/633 "2024-07-13T07:11:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Joao\_Roque](https://yyz2.discourse-cdn.com/flex050/user_avatar/community.criticalmanufacturing.com/joao_roque/32/24_2.png) [@Joao\_Roque](https://community.criticalmanufacturing.com/u/Joao_Roque)\
**Post date:** [July 13, 2024, 7:11am UTC](https://community.criticalmanufacturing.com/t/connect-iot-manager-message-bus-issue/633/1 "2024-07-13T07:11:02Z")

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Hi Team,

We are facing and issue in Automation Manager when I open Administration → Message Bus

error: Unexpected error occurred: Cannot read properties of undefined (reading ‘transport’)

TypeError: Cannot read properties of undefined (reading ‘transport’) at OnMonitoringMessage (C:\ConnectIoT\Manager\test\src\monitor.js:2045:48)  
at C:\ConnectIoT\Manager\test\src\monitor.js:1980:13  
at Array.forEach ()  
at Transport.parseMessage (C:\ConnectIoT\Manager\test\src\monitor.js:1979:38)  
at Transport.onMessage (C:\ConnectIoT\Manager\test\src\monitor.js:1951:16)  
at \_webSocket.onmessage (C:\ConnectIoT\Manager\test\src\monitor.js:1905:12)  
at callListener (C:\ConnectIoT\Manager\test\src\monitor.js:49503:14)  
at WebSocket.onMessage (C:\ConnectIoT\Manager\test\src\monitor.js:49422:9)  
at WebSocket.emit (node:events:513:28)  
at Receiver.receiverOnMessage (C:\ConnectIoT\Manager\test\src\monitor.js:53532:20)

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**Author:** ![Jose\_Silva](https://avatars.discourse-cdn.com/v4/letter/j/ac8455/32.png) [@Jose\_Silva](https://community.criticalmanufacturing.com/u/Jose_Silva)\
**Post date:** [July 31, 2024, 1:44pm UTC](https://community.criticalmanufacturing.com/t/connect-iot-manager-message-bus-issue/633/2 "2024-07-31T13:44:19Z")

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Dear Simon,

Thank you for your report.

Unfortunately I’ve found a bug in Message Bus javascript client library, impacting Connect IoT on versions 10.2.0 to 10.2.5.  
We recommend the upgrade to 10.2.6 where this issue was fixed.

Best,  
José

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<div class="post-metadata">

**Author:** ![Joao\_Roque](https://yyz2.discourse-cdn.com/flex050/user_avatar/community.criticalmanufacturing.com/joao_roque/32/24_2.png) [@Joao\_Roque](https://community.criticalmanufacturing.com/u/Joao_Roque)\
**Post date:** [August 20, 2026, 2:34pm UTC](https://community.criticalmanufacturing.com/t/connect-iot-manager-message-bus-issue/633/3 "2026-08-20T14:34:55Z")

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