Hi, your build is failing and launching a previously compiled (out of date) binary. It seems that you've drag-and-dropped files to your project that has since been deleted from this project instead of importing the project itself. Try to link this library again using the instructions in the readme.

@bhoomesh950 Make sure the font is linked and also make sure you're importing

import MaterialCommunityIcons from "react-native-vector-icons/MaterialCommunityIcons"

Rather than

import MaterialCommunityIcons from "react-native-vector-icons/MaterialIcons"

Which my editor's (vim) autocomplete (coc) suggested.

(It actually suggested both, but I got the same error as you before getting linking setup (rerun react-native run-ios).

I hope I helped. If not, good luck!

After installation you need to link the library (After the updation of React Native 0.60, they have introduced autolinking feature means we do not require to link the library but they have also mentioned that some libraries need linking and react-native-vector-icons is one of those cases).
After the linking just install the ios/pod file using pod install

You can follow Example to Use Vector Icons in React Native for the updated example of React Native 0.60

After installation and linking the library, you need to check

Run script only when installing under [CP] Copy Pods Resources in Xcode under yourprojectname.

for me was the face that the fonts were not defined in the info.plist

Encountered this issue today and spent an hour debugging it. My issue was resolved by checking the info.plist file and adding the fonts to the UIAppFonts array as they were missing in it:

<key>UIAppFonts</key>
  <array>
    <string>AntDesign.ttf</string>
    <string>Entypo.ttf</string>
    <string>EvilIcons.ttf</string>
    <string>Feather.ttf</string>
    <string>FontAwesome.ttf</string>
    <string>FontAwesome5_Brands.ttf</string>
    <string>FontAwesome5_Regular.ttf</string>
    <string>FontAwesome5_Solid.ttf</string>
    <string>Foundation.ttf</string>
    <string>Ionicons.ttf</string>
    <string>MaterialIcons.ttf</string>
    <string>MaterialCommunityIcons.ttf</string>
    <string>SimpleLineIcons.ttf</string>
    <string>Octicons.ttf</string>
    <string>Zocial.ttf</string>
  </array>

AntDesign.ttf Entypo.ttf EvilIcons.ttf Feather.ttf FontAwesome.ttf FontAwesome5_Brands.ttf FontAwesome5_Regular.ttf FontAwesome5_Solid.ttf Foundation.ttf Ionicons.ttf MaterialIcons.ttf MaterialCommunityIcons.ttf SimpleLineIcons.ttf Octicons.ttf Zocial.ttf

Thanks, this helped me.

@Seishin When I apply your fix, I can't start my app (try it with a fresh start aka. close simulator and terminal). I get the error described here:

https://react-native-elements.github.io/react-native-elements/docs/getting_started.html#step-2-install-react-native-vector-icons

And if I unlink the assets, the icons aren't found again.

@Seishin I really appreciate your help.... worked smooth !!!!!

@Seishin really helped me. Thanks!!!!

Thanks @fibric, your step-by-step worked perfectly!

Thank you @Seishin 😃