1

The problem

After upgrading to the latest SDK of expo I received the following error:

fontFamily: "material" is not a system font and has not been loaded through Font.loadAsync.

I am not using "material" font anywhere and I discovered that it's an internal font / dependency of expo font.

My Environment

 System:
     OS: macOS 10.15.4
     Shell: 5.7.1 - /bin/zsh
   Binaries:
     Node: 13.12.0 - /usr/local/bin/node
     Yarn: 1.22.4 - /usr/local/bin/yarn
     npm: 6.14.4 - ~/.npm/bin/npm
     Watchman: 4.9.0 - /usr/local/bin/watchman
   IDEs:
     Xcode: 11.0/11A420a - /usr/bin/xcodebuild
   npmPackages:
     expo: ^36.0.2 => 36.0.2 
     react: ^16.13.1 => 16.13.1 
     react-native: https://github.com/expo/react-native/archive/sdk-36.0.1.tar.gz => 0.61.4 
     react-navigation: ^4.3.5 => 4.3.6 
   npmGlobalPackages:
     expo-cli: 3.16.1

Place of the error where the font might be created by Expo

Path: /node_modules/@expo/vector-icons/build/MaterialIcons.js

import createIconSet from './createIconSet';
import font from './vendor/react-native-vector-icons/Fonts/MaterialIcons.ttf';
import glyphMap from './vendor/react-native-vector-icons/glyphmaps/MaterialIcons.json';
export default createIconSet(glyphMap, 'material', font); <------ It looks like it's creating the font here.
//# sourceMappingURL=MaterialIcons.js.map

Steps to Reproduce

Upgrade to latest version of Expo SDK (36.0.2) Add react-native-paper to project Make a sample screen Load custom fonts if needed

Steps I have undertaking already:

Extra information

Kevin Vugts
  • 1,462
  • 4
  • 21
  • 39

0 Answers0