c# - Visual Studio Incorrectly Parses External Code as Plain Text - Stack Overflow

I'm encountering an issue with Visual Studio where it sometimes fails to properly parse external code, causing it to appear as plain black text (instead of the usual colored syntax). For example, when I first use "Go to Definition" on a piece of a Unity project source code, VS correctly resolves it, allowing me to navigate through the code and jump to other class implementations. However, after a while, when I try to jump to the same Unity code again, it shows up as plain text without syntax highlighting. I think I have met with the same problem in other C# programs, not sure about other languages. Does anyone know under what circumstances code will be parsed correctly, and when it will just be displayed as plain text in Visual Studio? Is there a setting or configuration I can adjust to fix this behavior?

I'm encountering an issue with Visual Studio where it sometimes fails to properly parse external code, causing it to appear as plain black text (instead of the usual colored syntax). For example, when I first use "Go to Definition" on a piece of a Unity project source code, VS correctly resolves it, allowing me to navigate through the code and jump to other class implementations. However, after a while, when I try to jump to the same Unity code again, it shows up as plain text without syntax highlighting. I think I have met with the same problem in other C# programs, not sure about other languages. Does anyone know under what circumstances code will be parsed correctly, and when it will just be displayed as plain text in Visual Studio? Is there a setting or configuration I can adjust to fix this behavior?

• c#
• visual-studio
• unity-game-engine

Share Improve this question Follow asked Feb 3 at 16:08 li yixiaoli yixiao 5944 bronze badges 1

• 1 It seems that this problem often occurs when opening Unity files with VS. I've found many relevant posts on the Unity forum. In most cases, you need to update to the latest versions of VS and Unity. In other cases, you need to download the corresponding "Visual Studio Tools for Unity" according to your VS version. Additionally, there are many methods of making settings in the VS options in this post(developercommunity.visualstudio.com/t/…). You can give it a try. – Zhenning Zhang Commented Feb 4 at 7:10

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Sorted by: Reset to default 0

I suspect that Unity did not bind to Visual Studio, causing the script code to become Miscellaneous files. If it is this reason, it can be modified in the following way: Edit ->External Tools ->External Script Editor on the Unity toolbar Switch to the corresponding Visual Studio version in the options