_RCTSetLogFunction build failure in release mode fixed with Dead Code Stripping = No

[elicwhite]

I created a new project with 0.60.4. I was able to build and deploy the app to my physical iOS device with Debug scheme. I wanted to build for release by following the instructions here: https://facebook.github.io/react-native/docs/running-on-device

Specifically this line "go to Product → Scheme → Edit Scheme. Select the Run tab in the sidebar, then set the Build Configuration dropdown to Release."

After making that change I tried building a release mode version of the app to my device and the build failed with:

Undefined symbol: _RCTSetLogFunction

I found this stack overflow article that says

in the "Linking" section, find"Dead Code Stripping" section and change it "No"

This change made the build pass successfully.

It looks like this is a common problem that has been around for a long time. It would be great to either change the default or figure out how to keep this code from being dead code eliminated.

System:
OS: macOS 10.14.5
CPU: (4) x64 Intel(R) Core(TM) i5-4258U CPU @ 2.40GHz
Memory: 273.86 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 10.16.0 - ~/.nvm/versions/node/v10.16.0/bin/node
Yarn: 1.15.2 - /usr/local/bin/yarn
npm: 6.9.0 - ~/.nvm/versions/node/v10.16.0/bin/npm
Watchman: 4.7.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 12.2, macOS 10.14, tvOS 12.2, watchOS 5.2
IDEs:
Xcode: 10.2.1/10E1001 - /usr/bin/xcodebuild
npmPackages:
react: 16.8.6 => 16.8.6
react-native: 0.60.4 => 0.60.4

[react-native-bot]

Thanks for submitting your issue. Can you take another look at your description and make sure the issue template has been filled in its entirety?

👉 Click here if you want to take another look at the Bug Report issue template.