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Exception while running application after so many days

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support
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27 May 2020 08:10 #8517 by support

Replied by support on topic Exception while running application after so many days

If so, you are on wrong address, sorry.

The following user(s) said Thank You: vivek1706

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vivek1706
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27 May 2020 08:00 #8516 by vivek1706

Replied by vivek1706 on topic Exception while running application after so many days

I think I am using OPC Foundation (Checked in Program files (x86)).

Kind Regards,
Vivek

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support
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27 May 2020 07:36 #8515 by support

Replied by support on topic Exception while running application after so many days

Are you using our QuickOPC product (which version?), or just the OPC Foundation stack?
This forum is for QuickOPC.

Best refards

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27 May 2020 07:33 #8514 by vivek1706

Exception while running application after so many days was created by vivek1706

Hello,

This message contains confidential information

I have developed a OPC UA Client WinForm based .NET application. It was working fine earlier. No exceptions.
Now after approx 1.5 months, I tried to run the application/Start in Visual Studio 2017, it's throwing an exception: " System.InvalidCastException: 'Unable to cast object of type 'System.IO.FileNotFoundException' to type 'Opc.Ua.ServiceResultException'' ".

This exception has occurred me earlier too. When my OPC client application was ready and was getting connected to OPC server too, then after few days, this same exception came. I installed the certificates again and copied all the project files and placed it somewhere else in the directory. Somehow it started working again. I don't know how.

Why I am getting this error? Is it related to certificate re-installation? and what does opc.ua.certificategenerator.exe does ?

Can anyone help me here. It will be huge help to me.

Thank you in advance.

Thanks.