I have an API and a separate Azure Functions app. I upgraded my API app to .NET 5 and it's working fine. In the API app's solution, I have class library projects that I also reference in my Azure Functions app. These class libraries are netstandard2.1 projects.
Ever since this update -- during which I also updated all my NuGet packages to latest versions -- my Azure Functions app stopped working. I'm getting the following error:
Could not load file or assembly
'Microsoft.Extensions.Configuration.Abstractions, Version=5.0.0.0,
Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot
find the file specified. Value cannot be null. (Parameter 'provider')
I noticed that there were breaking changes involving the Microsoft.Extensions.* packages and their recommendation is to install the package that is causing the issue directly. So I added Microsoft.Extensions.Configuration.Abstractions to my Azure Functions manually -- before it was being installed as a dependency of Microsoft.Extensions.Configuration package. Here's the information about this:
https://github.com/dotnet/aspnetcore/issues/21033
The issue still persists. I even tried downgrading Microsoft.Extensions.Configuration in both the API and Functions app, but I'm still getting the same error.
Any idea how to resolve this issue?
Sam's comment should be accepted as correct answer. I try it out to downgrade Microsoft.Extensions* (in my case Microsoft.Extensions.Logging.Console) from 5.0.0 to 3.1.0 and the error just gone.
Bravo!
If you are upgrading from .NET Core 3.1 to .NET 6 and you get this error, you need to change the Azure functions version to v4 and it fixes this error.
As a reference, this GitHub link explains exactly why that happens.
And as of now, you either track down the exact versions been referenced or downgrade everything to the latest v3 build.
In a nutshell, Azure Functions SDK already has some dependencies loaded in memory, so your libraries cannot use newer versions of the same libraries.
Adding this answer in case it helps anyone upgrading from .NET 3.1 to .NET 6.0.
First, as per #Jeff's answer, make sure you reference v4 in the Azure Functions project .csproj file:
<AzureFunctionsVersion>v4</AzureFunctionsVersion>
In my case, however, this was already set.
The Azure Function was running fine locally however in Azure DevOps pipeline I was getting the error described by the OP.
I noticed that when debugging the Azure Function locally, the console was outputting:
Azure Functions Core Tools
Core Tools Version: 4.0.3928 Commit hash: 7d1d4a32700695bbf290a871c7492fde84bb767e (64-bit)
Function Runtime Version: 4.0.1.16815
In my case I am actually running the Azure Function in an Azure DevOps pipeline for e2e test purposes. To achieve this, I first install the Azure Function Core Tools on the build agent using this npm command:
npm install azure-functions-core-tools -g
However this installs azure-functions-core-tools#3.0.3904 (version 3.x - NOT the latest version 4.x).
I then installed Azure Function Core Tools (v4), e.g. by installing with this npm command.
npm i -g azure-functions-core-tools#4 --unsafe-perm true
And this (for me) resolved the error.
Whether or not this is your exact scenario, make sure you are using Azure Function Core Tools v4.x if using Azure Function Runtime v4 and .NET 6.
As #binaryDi mentioned in their answer, you need to downgrade packages that reference version 5 of Microsoft.Extensions.Configuration.Abstractions.
This can be a bit of a pain, as it doesn't tell you which packages are actually referencing Microsoft.Extensions.Configuration.Abstractions package/namespace.
For me, I had to update Microsoft.Extensions.Caching.Memory and Microsoft.EntityFrameworkCore.SqlServer to a version before 5. Anything that is referencing dotnet 5 should be downgraded for the Azure Function to run.
I stumbled upon this question while looking for an answer to my problem with upgrading to .NET 6.0. There was no going back, because I've bought a Macbook with an M1 processor and Arm support only works decently in .NET 6.0
Putting <AzureFunctionsVersion>v4</AzureFunctionsVersion> wasn't enough, because that doesn't increase the runtime version on Azure.
My function was already running on version 3.0 and strangely I couldn't select v4.0 in the portal. I had to change the version through the Azure CLI.
More information on how to do that can be found here: https://learn.microsoft.com/en-us/azure/azure-functions/set-runtime-version?tabs=azurecli
I also ran into this error when upgrading a c# function project from NETCORE 3.1 to .NET 6.
I set the following in the project (.csproj).
<AzureFunctionsVersion>v4</AzureFunctionsVersion>
AND also changed the Application setting value in the Function App - Configuration Section (Azure Portal)
"FUNCTIONS_EXTENSION_VERSION" from "~3" to "~4"
and that fixed it for me.
I also ran into this error when upgrading a c# func project from version 3 to 4.
I had already set <AzureFunctionsVersion>v4</AzureFunctionsVersion> but that didn't solve it.
The answer by #neeohw pointed me to the solution that fixed it for me, but I had to dig a bit further, and this is what fixed it for me:
Do the Azure cli commands as specified here:
https://learn.microsoft.com/en-us/azure/azure-functions/functions-versions?tabs=in-process%2Cv4&pivots=programming-language-csharp#azure
I suggest you read that section for a background understanding, but the commands that ran was these:
az functionapp config appsettings set --settings FUNCTIONS_EXTENSION_VERSION=~4 -n <APP_NAME> -g <RESOURCE_GROUP_NAME>
# For Windows function apps only, also enable .NET 6.0 that is needed by the runtime az functionapp config set --net-framework-version v6.0 -n <APP_NAME> -g <RESOURCE_GROUP_NAME>
The issue was occurring to me, when I was trying to host an upgraded function in Azure functions. The previous version was targeted to netcoreapp3.1, which I upgraded to target net6.0 and, set v4 as Azure Function version.
The error was
"Could not load file or assembly 'Microsoft.Extensions.Configuration', Version=6.0.0.0 in Azure Functions"
After spending couple of hours, I figured that its the startup class that was causing the issue because it was the only place Configuration was used.
Changing the Startup to inherit from FunctionsStartup rather than WebJobsStartup, fixed the issue.
And with slight adjustments, it worked.
[assembly: FunctionsStartup(typeof(Startup))]
...
public class Startup : FunctionsStartup { ...
public override void Configure(IFunctionsHostBuilder builder)
{
var configuration = new ConfigurationBuilder()
.AddEnvironmentVariables()
.Build();
builder.Services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
builder.Services.AddHttpClient();
...
}
That's it!
I had the same issue and the configuration for Azure FunctionsVersion was already present.
<AzureFunctionsVersion>v4</AzureFunctionsVersion>
I was able to resolve the issue by downgrading the version of Microsoft.Extensions.Http from 7 to 6
<PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
I was this error on my Mac (arm) when I tried to ran my functions (.NET6) locally.
In my case, I tried your solution and the functions still would not start and I still had this log in the console: Could not load file or assembly 'Microsoft.Extensions.Configuration.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified..
I realized that I had installed 2 instances of azure tools (v3 with HomeBrew and v4 with npm).
When I run func start to start my functions, I observed that v3 was used. So I uninstalled the v3 tools with HomeBrew to use v4 with npm).
In my case, the reason was Microsoft.EntityFrameworkCore version 5.0.2.
I donwgraded it to version 3.1.18.
(Other related packages, such as Microsoft.EntityFrameworkCore.Design, Microsoft.EntityFrameworkCore.SqlServer, and Microsoft.EntityFrameworkCore.Tools should also be downgraded to 3.1.18.
I had this error when I used the latest of version Npgsql.EntityFrameworkCore.PostgreSQL which is 5.0.7 as this time of writing. I had to downgrade to 3.1.11 for the current version has a dependency to the 5.0.0.0 version of
Microsoft.Extensions.Configuration.Abstractions.
After doing a fresh install of the VC platform and VC storefront from source code, I chose to install the sample data. I am getting an error in the Smart Caching Module, which states Module platform version 2.13.28 is incompatible with current 2.13.26;
In my VC Platform solution, I can see the version is in fact set to 2.13.26 in my common assembly file - and in my Smart Caching Module the target version is in fact set to 2.13.28.
How can I roll back the Smart Caching Module to target the 2.13.26 version? Or is it easier to upgrade the platform to version 2.13.28?
Thanks
Yes, the easiest way to update your VC platform to the latest version. https://github.com/VirtoCommerce/vc-platform/releases
After a few days of failure I realize I need more insight than google can deliver.
I am attempting to include a module in my otherwise working fine Titanium project but am not having any luck. The module in question is Ti.MapPlus, a fork of the standard Ti.Map module that I am already using. The GitHub repository does not have a compiled release, and it is not available via Gitt.io.
I have tried to create a new Mobile Module Project without success; but suspect that this is the best route.
Can anybody walk me through the steps of getting the module working globally?
There are some releases here: https://github.com/AppWerft/Ti.MapPlus/releases
I installed the KVM using command line and my web project in VS2015 preview broke not compiling, but if add a new web project all works fine, how do uninstall the KVM so I can get my old project working. In this video Scott mention the issue but no solution, please see link, the video mention the issue at the 8:00 minute
video
1: http://channel9.msdn.com/Series/Whats-New-with-ASPNET-5/05 I change the to use the default alias but that did not work
NuGet Settings
I believe your versions are out of sync. Check your project.json and make sure you are not using different versions. I found that when I had 1 dependency that used 3.0.0-* it upgraded to beta2 from beta1. All of my other dependencies had beta1 actually defined. (Ex: 1.0.0-beta1). If the beta2 assembly shares the same dependency as one of your assemblies using beta1 it will override the older version of the shared assembly that is being used and causes your older version to fail.
You can remove any KRE package by deleting it from c:\Users\<user>\.kre\packages\. If you want to remove KRE and KVM then remove both the .kre folder completely.
However, you don't have to remove it to use a different version. You can either use kvm use <version> or, from VS, select the target framework in the project properties.
I have similar issue and I solved it by following steps.
In NUget Package Manager I selected only one nuget.org ( Disable myget.org by unselecting it)
I goto C:\Users\<>.kre\alias directory. Here you will find default.txt and I replace default.txt value with KRE-CLR-x86.1.0.0-beta1 ( If you downloaded latest version of Kre then this file change and it create problem for VS 2015 Preview)
After this close your solution and open it again. If possible then open as Administrator.
I hope this works for you as well.
While changing the dojo version from 1.3 to 1.7.3, I simply replaced all my dojo 1.3 folder files with dojo 1.7.3. After rebuilding my web application, I am getting error hxrFailed at dojo.js, line no 15.
What is the wrong that I am facing here? Do I need to change any existing code. Is there any document to refer for all the required changes.
Please help me to get out from this issue.
Thanks,
Sridhar.ch
Lots changed and there are some lengthy tutorials to help you migrate. Check out the documentation tab on Dojo's website:
1.x to 2.0 migration guide:
http://dojotoolkit.org/reference-guide/1.8/releasenotes/migration-2.0.html
Updated buildsystem tutorial:
http://dojotoolkit.org/documentation/tutorials/1.8/build
In theory the current (1.8) build system is backward compatible until 2.0, but in practice I'm not sure it is 100% backward compatible because my 1.6 build profile didn't work with 1.7.x and up. I didn't try that hard to get it to work though.
I have gone through the same. the xhrFailed error occurred for me for multiple reasons. One of the reason was a missing a file in the define as below:
define(["something/was/missing/here"],function(){});.
Another cause for the same error occurred was when a folder in a path of a dependency was renamed but not updated in the application build profile. (This case only if your are doing custom builds).
See if that is the case!