How do I install Assert Library from AppSource?

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Posted on by Ivan Petrov

Hello,

I'm trying to run a test in my sandbox could environment. I have the dependency in the app.json file

{
    "dependencies": [
        {
        "id": "dd0be2ea-f733-4d65-bb34-a28f4624fb14",
        "name": "Library Assert",
        "publisher": "Microsoft",
        "version": "19.0.0.0"
        }
    ]
}

When I try to publish it I get the error:

error AL1024: A package with publisher 'Microsoft', name 'Library Assert', and a version compatible with '19.0.0.0' could not be loaded. Symbols for the requested app Library Assert by Microsoft 19.0.0.0 could not be found among this tenant's installed apps. AppGroup Id 25452
MyExtension/Tests/GenericTest.al(10,17): error AL0185: Codeunit 'Library Assert' is missing

I cannot find the Library Assert in the AppSource to install it. Where should I be looking for it?

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Answers (1)

Suggested answer

Nitin Verma 21,273 Moderator on at

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RE: How do I install Assert Library from AppSource?

The simplest way you can go to Extension management and check what is the latest version in there for the app you are trying to add in AL code and use that version, currently the error you are facing is due to version no. is not installed in your envrionment.
Verified answer

YUN ZHU 77,925 Super User 2025 Season 1 on at

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RE: How do I install Assert Library from AppSource?

Hi, to install AppSource Extension do following: In address bar, append following to the base business central URL
?aid= FIN&page=2503&filter=%27ID%27%20IS%20%27<App ID>%27&signInRedirected=1
Then replace part with the AppSource Extension’s App Id.

More details:

How to install AppSource Extension in Dynamics 365 Business Central SaaS
https://yzhums.com/2337/

PS: This question was answered by Freddy on MS Yammer.

https://www.yammer.com/dynamicsnavdev/threads/2060247213187072

Hope this helps.

Thanks.

ZHU