dotnet type_error ai_generated true

CS8600: Converting null literal or possible null value to non-nullable type

ID: dotnet/nullable-reference-warning

Also available as: JSON · Markdown
85%Fix Rate
88%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8 active — — —

Root Cause

Nullable reference type warning: potential null dereference.

generic

Workarounds

  1. 92% success Handle null explicitly with null-conditional and null-coalescing operators 
    var result = obj?.Property ?? defaultValue
  2. 88% success Enable nullable reference types project-wide and fix incrementally

Dead Ends

Common approaches that don't work:

  1. Suppress all nullable warnings with #nullable disable 80% fail

    Loses null safety

  2. Add \! operator on everything 82% fail

    Runtime NullReferenceException