New project fails on react-native@0.46

Is this a bug report?

Yes

Have you read the Bugs section of the Contributing to React Native Guide?

Yes

Environment

1. react-native -v: 0.46.0
2. node -v: 8.1.3
3. npm -v: 5.0.3
4. yarn --version (if you use Yarn): 0.27.5

Then, specify:

1. Target Platform (e.g. iOS, Android): iOS
2. Development Operating System (e.g. macOS Sierra, Windows 10): macOS Sierra (10.12.5 (16F73)
3. Build tools (Xcode or Android Studio version, iOS or Android SDK version, if relevant): Xcode 8.3.3

Steps to Reproduce

(Write your steps here:)

1. react-native init Test
2. cd Test
3. react-native run-ios

Expected Behavior

App would go through build process and start app in iOS Simulator, and packager in a terminal window.

Actual Behavior

Error in simulator

Error in packager Terminal Saved Output.pdf

Reproducible Demo

It’s a fresh project built with react-native-cli.

[iRoachie]

Removing .babelrc seems to temporarily fix the issue

[rburmorrison]

I’ve had a lot of issues with React Native version 0.45 and up. One thing that I found is that React Native doesn’t play well with npm 5. Switch to npm 4. Do this with npm install -g npm@latest-4. If that doesn’t help, simply switch to React Native 0.44.0. That’s what I’m using, and you’re not missing out on much by going back. When starting a new project, run react-native init projectname --version 0.44.0. Hope that helps!