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Problem

the Gateway Status log of the Enterprise Server is flooded with this error

java.io.InvalidClassException: com.sepasoft.production.tags.collector.storeddata.TagRecords; 
local class incompatible: stream classdesc serialVersionUID = 1, local class serialVersionUID = 8132203291859736287

Solution

This means the two gateways have different serialVersionUID  for the same class so it cannot send over the network.

It is a requirement to run the same MES versions and Support Package on Enterprise and (all) Site(s)

please follow the guide to upgrade.
https://help.sepasoft.com/docs/display/SEPA/Installation+Guide 

Sepasoft Modules can be downloaded from 
https://www.sepasoft.com/downloads/

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