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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Cannot read property 'properties' of undefined when adding a lazy loaded module with ng generate","articleBody":"# 🐞 Bug report\r\n\r\n### Command (mark with an `x`)\r\n\r\n\u003c!-- Can you pin-point the command or commands that are effected by this bug? --\u003e\r\n\u003c!-- ✍️edit: --\u003e\r\n\r\n- [ ] new\r\n- [ ] build\r\n- [ ] serve\r\n- [ ] test\r\n- [ ] e2e\r\n- [x] generate\r\n- [ ] add\r\n- [ ] update\r\n- [ ] lint\r\n- [ ] extract-i18n\r\n- [ ] run\r\n- [ ] config\r\n- [ ] help\r\n- [ ] version\r\n- [ ] doc\r\n\r\n### Description\r\n\r\nWhile attempting to find the module to add a lazy loaded route declaration to while generating a new lazy loaded module with option `--module=app`, `findModuleFromOptions` tries file candidates from least to most specific:\r\n\u003cpre\u003e\u003ccode\u003e\r\n[\r\n  '/src/app/areas',\r\n  '/src/app/areas/app.ts',\r\n  '/src/app/areas/app.module.ts'\r\n]\r\n\u003c/code\u003e\u003c/pre\u003e\r\nIf both app.module.ts and app.ts exist, app.ts is returned. If that file does not include an @angular/core import, this leads to an \r\n`Cannot read property 'properties' of undefined` error down the line (node is undefined in `getMetadataField` in ast-utils).\r\n\r\n## 🔬 Minimal Reproduction\r\n\r\n- Create a new angular project using `ng new`.\r\n- Create an empty file `src/app/app.ts`\r\n- Call `ng g m foo --routing --route=foo --module=app`\r\n\r\n## 🔥 Exception or Error\r\n\r\n`Cannot read property 'properties' of undefined`\r\n\r\n## 🌍 Your Environment\r\n\r\n\u003cpre\u003e\u003ccode\u003e\r\nAngular CLI: 12.1.3\r\nNode: 12.18.3\r\nPackage Manager: npm 6.14.6\r\nOS: win32 x64\r\n\r\nAngular: 12.1.3\r\n... animations, cli, common, compiler, compiler-cli, core, forms\r\n... platform-browser, platform-browser-dynamic, router\r\n\r\nPackage                         Version\r\n---------------------------------------------------------\r\n@angular-devkit/architect       0.1201.3\r\n@angular-devkit/build-angular   12.1.3\r\n@angular-devkit/core            12.1.3\r\n@angular-devkit/schematics      12.1.3\r\n@schematics/angular             12.1.3\r\nrxjs                            6.6.7\r\ntypescript                      4.3.5\r\n\u003c/code\u003e\u003c/pre\u003e\r\n\r\n## Workaround\r\n\r\nTo work around this issue, we can specify the module by file name, not module name:\r\n\r\n`ng g m foo --routing --route=foo --module=app.module.ts`\r\n\r\n","author":{"url":"https://github.com/mjamin","@type":"Person","name":"mjamin"},"datePublished":"2021-07-22T08:19:12.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/21397/angular-cli/issues/21397"}