[Expo] [MapLibre] module 'Mapbox' not found

Describe the bug
I have an expo app and I would like to use MapLibre instead of MapBox

I have the following error:

› Compiling @react-native-mapbox-gl/maps Pods/react-native-mapbox-gl » FilterParser.m

❌  (node_modules/@react-native-mapbox-gl/maps/ios/RCTMGL/FilterParser.m:10:9)

   8 | 
   9 | #import "FilterParser.h"
> 10 | #import <Mapbox/Mapbox.h>
     |         ^ 'Mapbox/Mapbox.h' file not found

To Reproduce

• Create a new Expo app
• Add a scheme in app.json
• Install react-native-mapbox following (https://github.com/react-native-mapbox-gl/maps/blob/master/plugin/install.md)
• Update podfile to add $RNMBGL_Use_SPM = true
• pod update in ios directory
• expo run:ios

During pod update I see

Removing Mapbox-iOS-SDK
Removing MapboxMobileEvents

but no reference to MapLibre

On android I have a similar issue:

› Compiling @react-native-mapbox-gl/maps Pods/react-native-mapbox-gl » MGLSnapshotModule.m

❌  (node_modules/@react-native-mapbox-gl/maps/ios/RCTMGL/RCTMGLUtils.h:14:9)

  12 | #import <React/RCTImageLoader.h>
  13 | 
> 14 | @import Mapbox;
     |         ^ module 'Mapbox' not found

Here is an app example : https://github.com/mlecoq/expo-maplibre

Expected behavior
I can run MapLibre with Expo

Actual behavior
MapBox is ok but MapLibre crashes

Versions (please complete the following information):

• Platform: Android and iOS
• Platform OS: Android 11, iOS 14.4
• Device: iPhone 12
• Emulator/ Simulator: yes
• Dev OS: osx
• react-native-mapbox-gl Version 8.2.1
• React Native Version 0.63

[mlecoq]

Ok, I understand

Expo plugin does not add

  post_install do |installer|
    $RNMBGL.post_install(installer)
    ... other post install hooks
  end

in podfile

Adding this solves the issue, I will see if I can update expo plugin

[EvanBacon]

I didn’t add support for MapLibre, it would require a PR to add support, or just setting the package up manually and not using prebuild.

In general, this plugin is “very dangerous” because it uses regexes in an application file. We’re working on a system for library authors to define postinstall / preinstall blocks for their native module as part of Expo autolinking. When that is released we can rewrite this plugin to support more features and be safer.