debugmodules.js

const modules = require.getModules();
const moduleIds = Object.keys(modules);
const loadedModuleNames = moduleIds
	.filter(moduleId => modules[moduleId].isInitialized)
	.map(moduleId => modules[moduleId].verboseName);
const waitingModuleNames = moduleIds
	.filter(moduleId => !modules[moduleId].isInitialized)
	.map(moduleId => modules[moduleId].verboseName);

// make sure that the modules you expect to be waiting are actually waiting
console.log(
	"loaded:",
	loadedModuleNames.length,
	"waiting:",
	waitingModuleNames.length
);

// grab this text blob, and put it in a file named packager/modulePaths.js
console.log(`module.exports = ${JSON.stringify(loadedModuleNames.sort())};`);