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System.MissingMethodException after uploading automation script with new NuGet versions

Solved926 views7th December 2023Automation NuGet
3
Jason Pitteman [SLC] [DevOps Member]556 7th December 2023 0 Comments

Hi,

We've updated the NuGet in an automation script to a newer version and saved it as a compiled script in order to be sure that all dependencies will be uploaded to the DataMiner system.

When installing the script via the DataMiner Application Package we can see that everything is uploaded correctly and hitting the validate button results in 0 errors. However, when we try to run the script it throws System.MissingMethodExceptions.

The solution was to restart the SLAutomation process. Since we were using a staging environment this didn't really have an impact. However, we will have to deploy it to production some day and restarting the SLAutomation process in not desired since it could impact other components such as SRM.

Would there be an alternative? Or is this a known issue?

Server version : 10.3.8.0-13183
Client version : 10.3.2325.2012-78ede0fb
Launcher version : 10.3.2324.534-f6dadc78

Thanks in advance.

Kind regards,

Jason Pitteman [SLC] [DevOps Member] Selected answer as best 7th December 2023

2 Answers

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Pedro Debevere [SLC] [DevOps Enabler]1.80K Posted 7th December 2023 1 Comment

After investigation, this is a combination of factors.

First, the NuGet 'A' that was referenced in the Automation script had a dependency on another NuGet package 'X'. However, another version of NuGet 'X' was also referenced in the Automation script. If you expose types from 'X' in NuGet 'A' (e.g. by providing a method that e.g. has as argument a type from 'X', then you can have the mentioned exception if the versions differ. More information can be found here.

Second, the fact that it worked after a DataMiner restart was due to the way default install script is currently implemented. A task has been created to update this behavior: https://collaboration.dataminer.services/task/227329.

Jason Pitteman [SLC] [DevOps Member] Selected answer as best 7th December 2023
Jason Pitteman [SLC] [DevOps Member] commented 7th December 2023

Thanks for the intense investigation.

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