Resolving Persistent Xcode Build Failures via Derived Data Purging
Learn how to diagnose and fix persistent 'Module not found' and linker errors in Xcode by identifying Derived Data corruption and performing a deep cache purge.
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Xcode Build System: Module Cache Persistence After Clean Build Folder
Maintaining a clean environment is essential for ensuring build reproducibility, particularly when integrating Xcode with CI/CD pipelines on resource-constrained agents. The standard mechanism for resetting the build state is the "Clean Build Folder" operation. While this operation typically removes intermediate artifacts from the Derived Data directory, the
xcodeClean Build Folder vs DerivedData removal for stale incremental artifacts
Choosing between Clean Build Folder and full DerivedData removal is a recurring decision when incremental builds appear to retain outdated artifacts. Xcode stores build products, indexes and module caches under DerivedData. Clean Build Folder is documented as targeting the project's build products for the active scheme, while deleting DerivedData removes cac