semantic-kernel: copilot-chat-app can't build

Describe the bug I refer to https://github.com/microsoft/semantic-kernel/blob/main/samples/apps/copilot-chat-app/README.md this article, want to run copilot-chat-app, but can not successfully build project

/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/Diagnostics/Verify.cs(20,90): error CS0103: 当前上下文中不存在名称“obj” [/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/SemanticKernel.Abstractions.csproj]
/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/Diagnostics/Verify.cs(29,102): error CS0103: 当前上下文中不存在名称“str” [/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/SemanticKernel.Abstractions.csproj]
/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/Diagnostics/Verify.cs(65,114): error CS0103: 当前上下文中不存在名称“text” [/path/semantic-kernel/dotnet/src/SemanticKernel.Abstractions/SemanticKernel.Abstractions.csproj]

To Reproduce

1. cd /path/semantic-kernel/samples/apps/copilot-chat-app/webapi
2. run dotnet build

Expected behavior build success

Desktop (please complete the following information):

• OS: mac 13.0 (22A380) apple m1
• dotnet sdk: 6.0.408