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Adhoc datasource wont load assembly

334 views6th February 2025adhoc
1
Gerwin van der Kamp [DevOps Enabler]2.91K 5th February 2025 0 Comments

Hi,

I created an adhoc datasource using an internal nuget.

When loading i get the following error:

Error trapped: Error thrown in implementation of GetNextPage: Could not load file or assembly 'DataMiner.DOM, Version=1.1.24.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.

I found this question around this topic, so i moved the dll to the files directory but i still get this error.

It's giving this error on at least versions 10.4.10.0-14882 & 10.4.5.0-14239

Any advice?

Ronald Gerard [SLC] [DevOps Advocate] Answered question 6th February 2025

1 Answer

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Ronald Gerard [SLC] [DevOps Advocate]1.73K Posted 6th February 2025 12 Comments

Hi Gerwin,

This error usually occurs when trying to reference an assembly that is targeting a different CPU architecture (32 vs. 64 bit).

Can you check whether your internal Nuget is either targeting Any CPU, or x86/x64 depending on the OS where DataMiner (more specifically the SLHelper process) is running.

Gerwin van der Kamp [DevOps Enabler] Edited comment 29th April 2025
Gerwin van der Kamp [DevOps Enabler] commented 6th February 2025

Well the internal nuget is working with the normal automation engine.

But the target in the nuget is x86 <PlatformTarget>x86</PlatformTarget>

Ronald Gerard [SLC] [DevOps Advocate] commented 6th February 2025

Ok, then SLAutomation is probably running 32 bit while SLHelper is running 64 bit. Is it possible to change the PlatformTarget of the nuget to AnyCPU?
Then it should be compatible with both.

Gerwin van der Kamp [DevOps Enabler] commented 6th February 2025

I'll give it an try.

Sara Gluhović [SLC] [DevOps Advocate] commented 12th March 2025

Hello,
I'm facing the same issue only with SLManagedAutomation, and it seems that method .AddRange() is the cause. I tried changing Build Target of the ad hoc data source project but that didn't help. Any ideas?

Gerwin van der Kamp [DevOps Enabler] commented 12th March 2025

To add to this, i recently upgraded to 10.5.3 but the issue still remains. to be fair i'm not sure if it is compiling the library anymore since i keep the same name altough i edit to include an number

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