Unexpected Exception Non-supported type Parameter name

Solved887 viewselements parameter unexpected exception
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Hi Dojo,

I have this exception before restarting an element:

"Unexpected Exception [Non-supported type
Parameter name: dataType]: Subscribe/Unsubscribe ( at Skyline.DataMiner.Net.MessageHandler.ParameterDataToMessages(Type dataType, Int32 dataMinerID, Int32 elementID, Object info, ParameterChangeOrigin origin)
at Skyline.DataMiner.Net.MessageHandler.ParameterDataToMessages(Type dataType, Int32 dataMinerID, Int32 elementID, Object info, ParameterChangeOrigin origin)
at Skyline.DataMiner.Net.DataMiner.SubscribeOnSLDataMinerElementInner(SubscribeInfo info)
at Skyline.DataMiner.Net.DataMiner.SubscribeOnSLDataMinerElement(SubscribeInfo info)
at Skyline.DataMiner.Net.DataMiner.DoQueuedSubscriptionInner(Object arg))"

I'm not able to find the root cause of this exception. Any idea?

Thank you in advance.

Daniel Martinez [DevOps Advocate] Selected answer as best 7th March 2023

1 Answer

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Some extra information about this error message:

This error indicates that a client (application or script) tried to register a subscription for a type of events that does not exist.

The root cause is most likely a logical error in such application or script. By itself, this error message is not disclosing further information.

The impact of this error remains limited to the client application not receiving these updates. Other clients should not be affected. In that sense, it is safe to clear the notice from the alarm console (right click -> clear)

If this error would occur frequently, or if it can be linked to starting a specific element, it's probably best to open a support issue to have this further looked in.

Daniel Martinez [DevOps Advocate] Selected answer as best 7th March 2023
Daniel Martinez [DevOps Advocate] commented

Hi Wouter,
Understood! I will check if before clear the notice, it reappears and in that case I will contact to Skyline support.

Thanks!