(Solved) False build errors in VS 2022, WPF C#

Question

I'm working on a C# WPF music player in VS. I opened the project after a short break but with 17 build errors that weren't there before. I can normally build, run, use the running program. Everything included in the errors that is interactive works perfectly fine. The errors are all CS0103 (names: "PositionSlider" "PositionTextBlock" "SongTitleTextBlock" and more). It is not caused by code, I'm sure because everything programmed works and it doesn't show these errors in a new project with the same code. Already tried restarting Visual Studio, cleaning and rebuilding the solution etc..

Answer 1

Hi @Svatopluk Černý,

Welcome to Microsoft Q&A! 

It seems be a known issue:

Second time reporting: WPF: C# Editor cannot find controls defined in xaml file and shows every control reference as error. But project compiles ... - Developer Community (visualstudio.com) 

As others suggested, you can close all running VS instances and manually delete the hidden .vs, bin and obj folders in the project folder.

Then, rebuild the solution. 

You can also vote on that ticket and add your comment to follow the progress. 

Sincerely,

Anna

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