Azure Function App 无法加载 IOptionsFormatter

问题描述

我有一个尝试在本地运行的 C# Azure Function App.几个月前它以前运行良好，但现在失败了:

I have a C# Azure Function App that I'm trying to run locally. It previously had worked fine some months ago but is now failing with the following:

发生主机错误
Microsoft.Azure.WebJobs.Extensions.Storage:无法从程序集Microsoft.Azure.WebJobs.Host，版本=3.0.3.0，文化=中性，PublicKeyToken=31bf3856ad364e35"加载类型Microsoft.Azure.WebJobs.Hosting.IOptionsFormatter".

A host error has occurred
Microsoft.Azure.WebJobs.Extensions.Storage: Could not load type 'Microsoft.Azure.WebJobs.Hosting.IOptionsFormatter' from assembly 'Microsoft.Azure.WebJobs.Host, Version=3.0.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

在某个时候，我已将 Azure Functions 和 Web 作业工具更新到最新版本 (15.10.20460.0).

At some point I had updated the Azure Functions and Web Jobs Tools to the latest version (15.10.20460.0).

在启动时，索引函数时出现问题，因此我将 Microsoft.NET.Sdk.Functions nuget 包引用更新为最新版本 (1.0.24)，它现在为我提供了上述内容错误.

On startup, it was having problems indexing the functions so I updated the Microsoft.NET.Sdk.Functions nuget package reference to the latest version (1.0.24) which is now giving me the above error.

我还添加了对 Microsoft.Azure.WebJobs.Extensions.Storage 3.0.3 的 nuget 包引用，以解决同样出现的缺失 TableAttribute 错误.

I also added a nuget package reference to Microsoft.Azure.WebJobs.Extensions.Storage 3.0.3 to resolve the missing TableAttribute errors that appeared as well.

我检查了 bin 文件夹中具有以下版本的程序集:

I've checked the assemblies in the bin folder which have the following versions:

• Microsoft.Azure.WebJobs.Extensions.Storage.dll - v3.0.3.0
• Microsoft.Azure.WebJobs.Host.dll - v3.0.4.0

推荐答案

将 Microsoft.Azure.WebJobs.Extensions.Storage 的 Nuget 包参考从最新版本 - 3.0.3 更改为 3.0.2 解决了问题.

Changing the Nuget Package Reference for Microsoft.Azure.WebJobs.Extensions.Storage from the latest version - 3.0.3 to 3.0.2 resolves the issue.

现在运行函数项目成功启动，没有显示错误.

Running the function project now launches successfully with no errors displayed.

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