Unable to refer "Microsoft.Extensions.Logging.Abstractions" in the Azure Function

Viswanath Vankadari 10

Hi,

I am using VS2022 community edition and created a new Http Azure function with run time as .Net 7.0.

 <PropertyGroup>
   <TargetFramework>net7.0</TargetFramework>
   <AzureFunctionsVersion>v4</AzureFunctionsVersion>
 </PropertyGroup>

When I reffered, "Microsoft.Extensions.Logging.Abstractions" (8.00-preview.7.23375.6 or 7.0.1) and debug, I am getting an error

Could not load file or assembly 'Microsoft.Extensions.Logging.Abstractions, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified.

I googled a lot, but could not find the answer.

What can be the issue and how to fix this.

Regards,

Viswanath

Bruno Lucas 4,431 Reputation points MVP

2023-09-12T09:51:02.5333333+00:00

Hi @Viswanath Vankadari , how did you add the nuget?

did you run "dotnet add package Microsoft.Extensions.Logging.Abstractions --version 8.0.0-preview.1.23110.8"?

did you get any error while running the nuget command line?

Do you see this under packages? Did you try clean/recompile? maybe close and reopen VS as administrator?
Viswanath Vankadari 10 Reputation points

2023-09-12T09:57:14.93+00:00

Hi Bruno,

I have the package, using "Manage Nuget Packages" option from the project and through the package manager console.

Also I can see the package in "Packages" list.

I have tried all the basic options like, clean, rebuild, working in adminstrator mode. Still I am having the same issue.

Regards,

Viswanath Vankadari
Bruno Lucas 4,431 Reputation points MVP

2023-09-13T08:57:01.1233333+00:00

Hi @Viswanath Vankadari

I tried to break to see if I could fix but struggling to reproduce the problem.

I see you are using the last preview version.

try to update to this first RC version: https://www.nuget.org/packages/Microsoft.Extensions.Logging.Abstractions/8.0.0-preview.1.23110.8
MuthuKumaranMurugaachari-MSFT 22,356 Reputation points

2023-09-13T13:54:27.3966667+00:00

Viswanath Vankadari Thanks for posting your question in Microsoft Q&A. As Bruno Lucas mentioned, I couldn't repro this issue at my end as well. Here is the project reference that I successfully tested:

Can you check if you are using the latest Azure Functions Core Tools version? If not, make sure you upgrade to the latest version. I suspect other package references might overlap and causing this issue. If possible, share the full project reference like above, Core Tools version, code snippet, exception details including full stack trace (not screenshot). That would be helpful.
MuthuKumaranMurugaachari-MSFT 22,356 Reputation points

2023-09-15T12:47:03.5133333+00:00

Viswanath Vankadari Just a follow up to see if you are still looking for an assistance with this issue. Any additional info would be helpful to understand the issue better.
Nikolaj Ravn 20 Reputation points

2024-02-12T19:40:25.9133333+00:00

I believe my problem is somewhat the same. I get a problem from Microsoft.Extensions.Logging.Abstractions version 8.0.0 I get this problem: "NU1102: Unable to find package Microsoft.Extensions.Logging.Abstractions with version (>= 8.0.0)". All I do is:
$dotnet new console Demo1 $cd Demo1 $dotnet add package Microsoft.Extensions.Logging.Abstractions and boom! I'm running .net 8.0.1 (just reinstalled it) on MacOs Arm

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Unable to refer "Microsoft.Extensions.Logging.Abstractions" in the Azure Function

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