Issue when migrating from v0.54.0 to v0.55.0

[AshwinDeTaeye]

When updating the mobx-keystone package in a react native app from v0.54.0 to v0.55.0 i have the following error:

ERROR    TypeError: undefined is not a function, js engine: hermes
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication), js engine: hermes
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication), js engine: hermes

I have previously migrated most of my other apps without issue ( node, electron ) It seems to only be with react native.

babel.config.js

module.exports = {
  presets: [
    // If you use TypeScript
    ["@babel/preset-typescript", { allowDeclareFields: true }],
    [
      "module:metro-react-native-babel-preset",
      {
        unstable_disableES6Transforms: true,
      },
    ],
  ],
  env: {
    production: {},
  },
  plugins: [
    // MobX 5/6
    [
      "@babel/plugin-proposal-decorators",
      {
        legacy: true,
      },
    ],
    ["@babel/plugin-proposal-class-properties", { loose: true }],
    ["@babel/plugin-proposal-optional-catch-binding"],
  ],
}

package.json

    "react-native": "^0.63.4",
    "react": "16.14.0",
    "mobx": "^6.6.1",
    "mobx-keystone": "^0.55.0",
    "mobx-keystone-persist": "^1.2.0",
    "mobx-react": "^7.5.2",
    "mobx-react-lite": "^3.4.0",

Does anybody have similar experiences? All versions from 0.55.0 on have this issue.

Kr,

[xaviergonz]

does it also happen if you use another engine instead of hermes?

[AshwinDeTaeye]

When i set /android/build/build.gradle to:

project.ext.react = [ enableHermes: false, // clean and rebuild if changing ]

It stays the same. I also updated the hermes engine from 0.5.2 to 0.11.0 without effect.

[xaviergonz]

If you edit this line from the package.json inside node_modules/mobx-keystone to this: "react-native": "./src/index.ts", does it work then?

[AshwinDeTaeye]

With Hermes 'off' and "react-native": "./src/index.ts", it gives following error:

mobx-keystone@0.69.5 & 0.60.5 without Hermes

ERROR    TypeError: (0, _mobxKeystone.prop_dateString) is not a function. (In '(0, _mobxKeystone.prop_dateString)()', '(0, _mobxKeystone.prop_dateString)' is undefined)
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication)
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication)

For this, I should refactor quite a bit, I've done it before in other migrations. I'll do it in the next week and try again. However the two last errors seem similar to the ones before.

When I set Hermes back on I have the same error as initially mobx-keystone@0.69.5 & 0.60.5 with Hermes

ERROR    TypeError: undefined is not a function, js engine: hermes
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication), js engine: hermes
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication), js engine: hermes

mobx-keystone@0.50.0

error: Error: While trying to resolve module `mobx-keystone` from file `/home/u/git/CamePrinterLast/app/models/root-store.ts`, the package `/home/u/git/CamePrinterLast/node_modules/mobx-keystone/package.json` was successfully found. However, this package itself specifies a `main` module field that could not be resolved...

Logic, since the src doesn't exist in 0.50

Thanks for the support yet, your package has been very helpful since the start!

[xaviergonz]

What if besides the other change you also set "sideEffects": true in the package.json?

[xaviergonz]

I just published v0.69.7 which has some changes that make it work for expo (the previous one was not), could you check if it works now?

[AshwinDeTaeye]

It's the same with 0.69.7

ERROR    TypeError: (0, _mobxKeystone.prop_dateString) is not a function. (In '(0, _mobxKeystone.prop_dateString)()', '(0, _mobxKeystone.prop_dateString)' is undefined)
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication)
ERROR    Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication)

• Hermes off

In node_modules/mox-keystone package.json:

• "sideEffects": true
• "react-native": "./src/index.ts"