Red outline instead of shadow

[WalasPrime]

Android 5.0.1 (Galaxy S4)
On a clean project I get a red outline around my content instead of a shadow. I also get this error:

Warning: Native component for "RNCardView" does not exist
- node_modules\expo\src\Logs.js:187:24 in newConsoleFunc
- node_modules\react-native\node_modules\fbjs\lib\warning.js:36:22 in printWarning
- node_modules\react-native\node_modules\fbjs\lib\warning.js:60:27 in warning
- node_modules\react-native\Libraries\ReactNative\requireNativeComponent.js:52:12 in requireNativeComponent
- node_modules\react-native-cardview\libs\CardView.android.js:12:40 in <unknown>
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:174:12 in loadModuleImplementation
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:126:36 in guardedLoadModule
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:110:20 in _require
- node_modules\react-native-cardview\index.js:1:0 in <unknown>
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:174:12 in loadModuleImplementation
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:126:36 in guardedLoadModule
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:110:20 in _require
* App.js:3:0 in <unknown>
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:174:12 in loadModuleImplementation
- node_modules\metro-bundler\src\Resolver\polyfills\require.js:126:36 in guardedLoadModule
- ... 6 more stack frames from framework internals

I've just done npm install ... and react-native link ... which properly modified the android build project. The whole project builds without errors.
Anything else I can do to diagnose this?

[Kishanjvaghela]

@WalasPrime Open your project in Android Studios and check library is properly linked or not in your project.

[dabit3]

@WalasPrime this also happened to me. I realized that the react-native-link command did everything except add the package to MainApplication.java. This will fix the issue I think.

[WalasPrime]

@dabit3 thanks for the tip, I'll check this as soon as I can