启用.NET Native工具链的UWP应用启动崩溃，调试失效求助

Let’s break down these two frustrating .NET Native problems and walk through actionable fixes that go beyond just disabling optimizations.

1. "Hello World" Fails to Run with .NET Native #

Even basic apps falling over usually points to a configuration or toolchain mismatch. Try these steps:

• Verify toolchain installation: Open the Visual Studio Installer, check that the "Universal Windows Platform development" workload includes the latest .NET Native component. Outdated or incomplete installs often break core functionality.
• Double-check project settings: Right-click your project → Properties → Build → Ensure "Enable .NET Native" is checked, and your target Windows SDK version matches the toolchain’s supported range.
• Wipe and rebuild: Cache corruption is common. Run Clean Solution, delete the bin and obj folders manually, then do a full Rebuild Solution to start fresh.

2. Release Build Crashes on Startup with No Useful Callstacks #

This is a classic .NET Native pain point—optimizations and type stripping can obscure root causes. Here’s how to dig deeper, beyond just disabling optimizations:

• Tweak debug settings for better visibility: While Andrew Hall’s tip to uncheck "Optimize code" in the Release config helps, go a step further: in Project Properties → Build → Advanced, set "Debug information" to Full. This forces .NET Native to generate richer debug symbols, making breakpoints more likely to hit and callstacks more meaningful.
• Enable .NET Native logging: In Project Properties → Build → .NET Native, check "Enable logging" and "Generate debugging information". After compiling, look for the .ilc.log file in your output directory—it logs every detail of type stripping, interop processing, and optimization, which often reveals what’s being incorrectly trimmed or misconfigured.
• Audit interop dependencies: Since your callstack points to interop DLLs, confirm:
  • All native DLLs are included in your app package and match the target architecture (x86/x64/ARM).
  • DllImport declarations use the correct function names, calling conventions, and data types—even a small mismatch here can cause immediate crashes.
• Fix type stripping issues: .NET Native automatically trims unused types, but reflection or late-bound calls can bypass this detection. Add rules to your Default.rd.xml file to force retention of critical types/methods. For example:

  <Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
    <Application>
      <!-- Keep all types in your main assembly -->
      <Assembly Name="YourProjectAssembly" Dynamic="Required All"/>
      <!-- Or target a specific type used via reflection -->
      <Type Name="YourNamespace.ReflectedType" Dynamic="Required All"/>
    </Application>
  </Directives>
  

• Simplify to isolate the crash: Gradually comment out third-party libraries, interop calls, or non-core features until the crash stops. This will narrow down exactly which part of your code is incompatible with .NET Native.

内容的提问来源于stack exchange，提问作者user197505