Issues related to AI Agents

dnx is not a valid command

The getting started for Claude, Codex and Copilot CLI use the dnx command, which is only available on .NET 10.

If you want to use the App MCP with .NET 9 projects, you'll need to change dnx to uno-devserver and install it using dotnet tool install -g uno.devserver.

The App MCP turns red in Visual Studio 2022/2026

In Visual Studio, the App MCP might turn red in some occasions. To fix this issue, click on the three dots on the right and select Reload.

The uno-app MCP failed to start

The Uno Platform App MCP may fail to start in Claude/Codex/Copilot CLI when it is started in a folder that does not contain an Uno Platform project.

To fix this issue, change directories to a folder that contains the .sln or .slnx file of your project.