使用Unchase OpenAPI Connected Service遇LiquidTemplate初始化异常求助

我在VS 2022 Professional中使用Unchase OpenAPI (Swagger) Connected Services扩展为.NET Core API生成C#客户端类时，反复遇到以下错误：

The type initializer for 'LiquidTemplate' threw an exception.

已经尝试过以下操作，但均未解决问题：

• 卸载并重新安装该扩展
• 更新VS 2022
• 修复VS 2022

完整操作日志如下：

[06-06-2023 15:25:49.330] Warning:Failed loading the Unchase.OpenAPI.ConnectedService_Settings.xml user settings
[06-06-2023 15:27:00.894] Adding Unchase OpenAPI (Swagger) Connected Service to the project.
[06-06-2023 15:27:00.894] Adding service instance for "https://localhost:7212/api/swagger/v1/swagger.json"...
[06-06-2023 15:27:00.899] Adding Nuget Packages for OpenAPI (Swagger) CSharp Client...
[06-06-2023 15:27:00.907] Nuget Package "Newtonsoft.Json" for OpenAPI (Swagger) already installed.
[06-06-2023 15:27:00.911] Nuget Package "System.Net.Http" for OpenAPI (Swagger) already installed.
[06-06-2023 15:27:00.916] Nuget Package "System.ComponentModel.Annotations" for OpenAPI (Swagger) already installed.
[06-06-2023 15:27:00.921] Nuget Packages for OpenAPI (Swagger) CSharp Client were installed.
[06-06-2023 15:27:00.925] Generating NSwag-file for OpenAPI (Swagger)...
[06-06-2023 15:27:03.358] NSwag-file "AMSClient.nswag" for OpenAPI (Swagger) was generated.
[06-06-2023 15:27:03.361] Generating Client Proxy for OpenAPI (Swagger) Client...
[06-06-2023 15:27:03.555] Warning:Error: The type initializer for 'LiquidTemplate' threw an exception..
[06-06-2023 15:27:03.567] Client Proxy for OpenAPI (Swagger) Client was generated.
[06-06-2023 15:27:03.571] Adding service instance complete!
[06-06-2023 15:27:03.682] Finished adding Unchase OpenAPI (Swagger) Connected Service to the project.

尽管系统提示连接服务添加完成，但客户端代码并未更新，寻求可行的解决方法或调试方向。

可能的解决方向 #

• 修复配置文件问题：日志开头显示加载Unchase.OpenAPI.ConnectedService_Settings.xml失败，找到该文件（通常在%APPDATA%\Unchase\OpenAPI Connected Service目录），检查当前用户是否有读写权限，或者直接删除该文件让扩展重新生成配置。
• 清理扩展缓存：关闭VS，删除扩展缓存目录（路径一般为%LOCALAPPDATA%\Microsoft\VisualStudio\17.0_<随机标识>\Extensions\Unchase\OpenAPI Connected Service），重启VS后重试。
• 手动用NSwag CLI生成：既然已生成AMSClient.nswag文件，绕开扩展直接用CLI生成：
  1. 安装NSwag CLI：dotnet tool install -g NSwag.ConsoleCore
  2. 在项目目录执行：nswag run AMSClient.nswag
• 验证Swagger文档合规性：用Swagger Editor打开目标Swagger地址，检查文档是否符合OpenAPI规范，修复可能存在的格式错误或缺失字段。
• 更换扩展版本：尝试安装该扩展的旧版本，新版本可能存在兼容性问题，在VS扩展管理中查看版本历史并选择稳定旧版安装。

内容的提问来源于stack exchange，提问作者Nayak S