The original title is "Every icon vanished: a Metro debugging story (featuring a babel package from 2017)"

Short summary

A debugging narrative tracing a Metro bundler crash ('Cannot read properties of undefined reading transformFile') to an ancient @babel/[email protected] from 2017, transitively pulled in by @aws-amplify/graphql-types-generator. The author walks through eliminating false leads, identifying the version conflict via package-lock.json inspection, and fixing it with npm overrides in the root package.json.

• •Metro TypeError with no filename usually indicates a broken Babel toolchain, not application code
• •Root cause was @babel/[email protected] (2017) pulled transitively by @aws-amplify/graphql-types-generator
• •Fix: pin @babel/types and @babel/generator with overrides in root package.json

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