Coding⏱️ 2 min read📅 2026-06-03

How to Fix: How to fix WPF error: "Program does not contain a static 'Main' method suitable for an entry point"?

Check the project properties and ensure the Main method is still set as the entry point.

Quick Answer: Verify that the Main method remains in the Program.cs file, and check the project properties to confirm it's still set as the startup object.

The issue you're facing is quite common in WPF projects, especially when reorganizing classes or adding new ones. The problem lies in the way Visual Studio (or your IDE of choice) handles project structure and compilation.

⚠️ Common Causes

  • The main cause of this error is that the project's entry point, typically the `App.xaml` file, has become disassociated with the `Program.cs` or `Program.cs` equivalent in your new structure.

🛠️ Step-by-Step Verified Fixes

Method 1: Rebuild and Clean

  1. Step 1: Open the Solution Explorer in your IDE, right-click on the project, select Rebuild, and then Clean.

Method 2: Update Program.cs

  1. Step 1: Open the `Program.cs` file in your project. Ensure it contains a static `Main` method with the correct signature (usually `
    `) and that it is not hidden behind any other methods or classes.

💡 Conclusion

By following these steps, you should be able to resolve the 'Program does not contain a static `Main` method' error in your WPF project. Remember that maintaining a clear and organized project structure is key to avoiding such issues.

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