Module not found: Error: Can't resolve './'

[ellipizle]

Please provide us with the following information:

OS?

Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
Windows 8

Versions.

Please run ng --version. If there's nothing outputted, please run in a Terminal: node --version and paste the result here:
@angular/cli: 1.0.0-beta.32.3
node: 6.9.2
os: win32 x64

Repro steps.

Was this an app that wasn't created using the CLI? What change did you do on your code? etc.

npm uninstall -g angular-cli @angular/cli
npm cache clean
npm install -g @angular/cli@latest
ng new sample
copied app folder from old-sample to new sample
ng serve

The log given by the failure.

Normally this include a stack trace and some more information.

ERROR in ./src/app/user/reset-password/reset.password.component.css
Module not found: Error: Can't resolve './' in 'C:\webweb\src\app\user
t\reset-password'
@ ./src/app/user/reset-password/reset.password.component.css 6:353-3
66
@ ./src/app/user/reset-password/reset-password.component.ts
@ ./src/app/user/index.ts
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://localhost:4200/ ./src/main.ts

ERROR in ./src/app/user/login/login.test.component.css
Module not found: Error: Can't resolve './' in 'C:\webweb\src\app\user\login'
@ ./src/app/user/login/login.test.component.css 6:363-376
@ ./src/app/usert/login/login.test.component.ts
@ ./src/app/user/index.ts
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://localhost:4200/ ./src/main.ts

ERROR in ./src/app/user/forgot-password/forgot-password.component.css

Module not found: Error: Can't resolve './' in 'C:\webweb\src\app\user\forgot-password'
@ ./src/app/user/forgot-password/forgot-password.component.css 6:353
-366
@ ./src/app/user/forgot-password/forgot-password.component.ts
@ ./src/app/user/index.ts
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://localhost:4200/ ./src/main.ts

Mention any other details that might be useful.

this error started when i did upgrade angular/cli
i thought the errors could be as a result of referencing css
changed and swap between the following but still didnt work

styleUrls:['./forgot-password.component.css']
styleUrls:['forgot-password.component.css']

---

Thanks! We'll be in touch soon.

[mattdistefano]

#4778 maybe?

[clydin]

Are there any imports or url()'s in the stylesheet in question?

[ellipizle]

yes, remove background-image: url(""); from css did solve my issue.
thanks @mattdistefano and @clydin

[edelfrade]

Any fix does not involve removing background-image: url("")?

Setting images to url("/assets/images/...") stops it from breaking and works with ng-serve but does not make the correct route change when building to production.

[filipesilva]

Closing as answered.

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