HI. When I'm trying to code C# in Xcode for my Unity game project, the autocompletion and syntax highlight functions are not working at all, and it's driving me crazy. I have never had any issues when coding C++ in Xcode
Issues with Xcode Autocompletion and syntax highlight
Unfortunately, XCode does not support code intelligence features for C#. A good alternative is VS Code. See https://code.visualstudio.com/docs/languages/csharp for details.