RJSInitializeInContext EXC_BAD_ACCESS on launch

[mitaxe]

I am trying to use Realm in my RN application, but I get a crash on a splash screen (provided in the 'Actual Results" section).
DB is not even used. I moved initialization to the initDatabase method that I am not calling from code. Code snippet is attached at the very end.

Goals

Realm works on iOS

Expected Results

Realm works on iOS

Actual Results

Steps to Reproduce

• yarn install
• cd ios && pod install

Code Sample

Version of Realm and Tooling

• Realm JS SDK Version: 10.5.0
• Node or React Native: React Native 0.64.1
• Client OS & Version: ? iPhone X, iOS 14.6
• Which debugger for React Native: ? None

import Realm from 'realm'
import { Playlist } from './playlist'

class Database {
  realm: Realm
  playlist: Playlist

  public initDatabase() {
    try {
      this.realm = new Realm({
        schema: [Playlist],
        inMemory: true,
        schemaVersion: 1.0,
      })

      console.log('path', this.realm.path)
      this.playlist = new Playlist()
    } catch (err) {
      const { message } = err as Error
      console.error('Failed to open the realm', message)
    }
  }

  //TODO: Specify data type. It will exist in playlist store.
  public addPlaylist(data: any): void {
    this.playlist.addPlaylist(this.realm, data)
  }

  public getPlaylists(): Realm.Results<Realm.Object> {
    return this.playlist.getPlaylists(this.realm)
  }

  // public getPlaylistExercises(playlistId: number) {
  //   return this.playlist.getExercises(playlistId)
  // }

  public closeConnection() {
    this.realm.close()
  }
}

export default new Database()

[mitaxe]

it happens because we are using Hermes in iOS. I think it should be mentioned somewhere in the readme that realm doesn't support hermes.

[kneth]

We are working on Hermes - see #3792 - but in the meantime it might be a good idea to issue a warning in README.md.