# Common Build Issues

Guides for diagnosing and fixing build failures after version updates.

| Guide | When to use |
|-------|-------------|
| [Obsolete Patches](obsolete-patches.md) | Build fails with "Reversed patch" or "Hunk FAILED" |
| [Python Packages](python-packages.md) | Python package build or import failures |
| [CMake Packages](cmake-packages.md) | CMake configuration or install path issues |
| [Compiler Errors](compiler-errors.md) | `-Werror` failures, missing flags, new compiler warnings |
| [Rust Packages](rust-packages.md) | `cargoHash` mismatches, Go version pinning |
| [Dependency Failures](dependency-failures.md) | "Build failed due to failed dependency" |
