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Server execution failed error only when UA Toolkit is installed on application
05 Mar 2023 11:17 #11606
by support
Replied by support on topic Server execution failed error only when UA Toolkit is installed on application
Thank you.
I do not not know the problem cause yet, but the information has helped a bit. There are following events in the System log:
What this basically means is that the COM system has detected that the initialization code for the OPC DA server part has not been done/completed (the server code needs to "report itself" to COM once the process is started). We do not know the reason for that, but the fact that another instance is being started, and the "Server execution failed" error, are just consequences of this.
Questions:
1. Does the Integration Objects toolkit have some diagnostic facility that would allow them to check whether its initialization code is running fine?
2. Can they run the program in debugger and check (in the Output window, or by setting the breaking on any Exception) whether there aren't some unexpected but "swallowed" (hidden) exceptions during the initialization?
Regards
I do not not know the problem cause yet, but the information has helped a bit. There are following events in the System log:
What this basically means is that the COM system has detected that the initialization code for the OPC DA server part has not been done/completed (the server code needs to "report itself" to COM once the process is started). We do not know the reason for that, but the fact that another instance is being started, and the "Server execution failed" error, are just consequences of this.
Questions:
1. Does the Integration Objects toolkit have some diagnostic facility that would allow them to check whether its initialization code is running fine?
2. Can they run the program in debugger and check (in the Output window, or by setting the breaking on any Exception) whether there aren't some unexpected but "swallowed" (hidden) exceptions during the initialization?
Regards
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10 Jan 2023 21:29 #11435
by jdillon@softwaretoolbox.com
Replied by jdillon@softwaretoolbox.com on topic Server execution failed error only when UA Toolkit is installed on application
I confirmed with the customer the following:
Here is a list of references being used in the project. Do any of these contain a DA reference? Possibly OpcLabs.EasyOpcForms?
He does have the OPC DA Browse tool that allows him to browse DA Servers on his machine. He has set the Element type in the OPC Browse mode to none. See images below.
Lastly, he had a DA client implemented at one point but deleted it once adding the UA Client. Could there be anything lingering in the background even after deleting ?
Here is a list of references being used in the project. Do any of these contain a DA reference? Possibly OpcLabs.EasyOpcForms?
He does have the OPC DA Browse tool that allows him to browse DA Servers on his machine. He has set the Element type in the OPC Browse mode to none. See images below.
Lastly, he had a DA client implemented at one point but deleted it once adding the UA Client. Could there be anything lingering in the background even after deleting ?
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