fix: configure Metro for monorepo local development in expo-example#387
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Rosie-Kennelly-1 merged 3 commits intomainfrom Mar 10, 2026
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Without watchFolders, nodeModulesPaths, and blockList, Metro cannot resolve the symlinked @intercom/intercom-react-native package when developing locally from examples/expo-example. This caused a cascade of errors: unresolved modules, duplicate React Native copies, and SyntaxError from stale dependencies in the library root's node_modules. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
imSzukala
approved these changes
Mar 10, 2026
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Why?
Running the expo-example locally for development currently fails with a cascade of Metro errors — unresolved modules, duplicate React Native copies, and SyntaxErrors from stale dependencies in the library root's
node_modules. This makes it tedious to set up and test changes to the library.How?
Adds the standard monorepo Metro configuration (
watchFolders,nodeModulesPaths,blockList) so Metro can resolve the symlinked@intercom/intercom-react-nativepackage while keeping dependency resolution scoped to the example's ownnode_modules.watchFolders = [libraryRoot]— tells Metro "the library source lives two directories up, watch it for changes." Without this, Metro can't find @intercom/intercom-react-native at all → "Unable to resolve module" error.nodeModulesPaths = [path.resolve(__dirname, 'node_modules')]— tells Metro "resolve all dependencies from the example's node_modules only." Without this, Metro also picks up node_modules from the library root, which has a different (older) version of react-native → duplicate React Native copies and SyntaxError on VirtualView.js.blockList = [...]— explicitly blocks the library root's node_modules from Metro's module resolution. Belt-and-suspenders with IOS SDK Bridge #2 to prevent any transitive resolution from leaking through.Generated with Claude Code