Microsoft.Extensions.Logging.Abstractions not found on latest beta version upgrade

[mieliespoor]

I am trying to upgrade my function app to the latest beta version available but face the following exception:

If the Microsoft.Extensions.Logging.Abstractions 2.1.1 package is not installed:
System.Private.CoreLib: Could not load file or assembly 'Microsoft.Extensions.Logging.Abstractions, Version=2.1.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621). System.Private.CoreLib: Could not load file or assembly 'Microsoft.Extensions.Logging.Abstractions, Version=2.1.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'

If the Microsoft.Extensions.Logging.Abstractions package is not installed:
System.Private.CoreLib: Could not load file or assembly 'Microsoft.Extensions.Logging.Abstractions, Version=2.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621). System.Private.CoreLib: Could not load file or assembly 'Microsoft.Extensions.Logging.Abstractions, Version=2.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'

I have tried to following options:

• Not have the package reference
• Install version 2.1.0
• Install version 2.1.1
• Install version 2.2.0-preview1-35029
• Install version 2.2.0-preview2-35157

With every version I tried to install I get the error mentioned with the only difference the version number changes to the installed version of the package.

• Function App version: 2.0
• Function App name: Oneref-Functions
• Region: North Europe

I started the discussion in this thread: Azure/app-service-announcements-discussions#64 (comment)

[codingdiva]

I have encountered this same issue. Have you found a resolution yet?

[mieliespoor]

@codingdiva No I haven't been able to resolve the issue. Doesn't matter what version I reference, I get this issue so at this point I am blocked which is highly annoying as there are some update that I want to push out.

[tdjastrzebski]

Same problem here after when I tried to use ILogger in Azure Functions.

[PureKrome]

I'm also shocked that ILogger isn't part of File->New->Azure Function ... replacing TraceWriter or whatever the default was/is.

It should be part of the new, shiny things, now what Functions are all .NET Core, etc...

[mieliespoor]

I don't see this anymore with the latest bit, but I think one thing to make sure of is to double check that you are using the latest cli. I'm still on a very old cli version and have issues getting that updated, but that might be the issue with this also - having an old cli version.

[PureKrome]

@mieliespoor when you say "double check that you are using the latest cli" can you please confirm what that exact tool is, please? (screen shot?)

[mieliespoor]

@PureKrome when you run your function app through Visual Studio, you will see a message, in the console, similar to:
[9/19/2018 6:12:53 PM] Starting Host (HostId=xxx, InstanceId=xxx, Version=2.0.12161.0)
That will indicate the functions cli version.

[PureKrome]

Starting Host (...., Version=2.0.11651.0, ....)

Ok, so i've got a version that's older than yours. So how do I update the CLI please?

[mieliespoor]

Have a look at #3759 . I'm also on that same version and Visual Studio don't seems to update the cli to the latest version.

[mieliespoor]

I'm closing this in favour of #3759