On ionic angular, storybook display a message error : ERROR in ./src/polyfills.ts Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js): Error: C:\Users\foo\workspaces\tmp\photo-gallery\src\polyfills.ts is missing from the TypeScript compilation. Please make sure it is in your tsconfig via the 'files' or 'include' property. at C:\Users\foo\workspaces\tmp\photo-gallery\node_modules\@ngtools\webpack\src\ivy\loader.js:75:26 For reproduct the error : npm install -g @ionic/cli native-run cordova-res ionic start photo-gallery tabs --type=angular --capacitor npx storybook@latest init Remark : I tried with standalone components I think this is related to ionic/angular, because I tried with only angular, and it's working well. Continue reading...