dotnet-build-analysis

Help agents interpret and act on MSBuild build output. Covers error code prefixes, NuGet restore failures, analyzer warning interpretation, multi-targeting build differences, and "works locally, fails in CI" diagnosis patterns. Each subsection includes example output, diagnosis steps, and a fix pattern.

Scope

• MSBuild error code prefix interpretation (CS, MSB, NU, CA, IDE, NETSDK)
• NuGet restore failure diagnosis and resolution
• Analyzer warning triage and suppression guidance
• CI vs local build drift diagnosis

Out of scope

• Writing or modifying .csproj files -- see [skill:dotnet-csproj-reading]
• Project structure decisions -- see [skill:dotnet-project-structure]
• Common agent code mistakes -- see [skill:dotnet-agent-gotchas]

Prerequisites