local-cli/runIOS/runIOS.js uses incorrect values when building / installing iOS App

[chiavennasca]

Environment

• Mac OS X 10.11.4
• React Native 0.26.2
• XCode 7.3 (7D175)

Issue

local-cli/runIOS/runIOS.js will error out with the following messages if the final build location of the app is not build/Build/Products/Debug-iphonesimulator/${inferredSchemeName}.app.

Installing the new app version on the running simulator fails

Line 96 (child_process.spawnSync('xcrun', ['simctl', 'install', 'booted', appPath], {stdio: 'inherit'});) results in the following:
Installing build/Build/Products/Debug-iphonesimulator/[IMPLICIT_SCHEME_NAME].app
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Failed to install the requested application

Printing the CFBundleIndentifier fails because the path to the Plist is incorrect

Line 105 (child_process.spawnSync('xcrun', ['simctl', 'launch', 'booted', bundleID], {stdio: 'inherit'});) results in the following:
An application bundle was not found at the provided path.
Provide a valid path to the desired application bundle.
Print: Entry, ":CFBundleIdentifier", Does Not Exist
Error: Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/[IMPLICIT_SCHEME_NAME].app/Info.plist

Repro

1. react-native init MyApp
2. (Optional) Open MyApp.xcproj in Xcode and modify MyApp -> Build Settings -> Packaging -> Product Name to something else like My App.
3. react-native run-ios

Root Causes & Possible Solutions

Modifying [APPLICATION_TARGET] -> Build Settings -> Packaging -> Product Name so it does not match inferredSchemeName

Get value of EXECUTABLE_NAME from xcodebuild with identical settings and -showBuildSettings flag and use that instead of implicitSchemeName in the appPath.

xcodebuild builds in Release by default for Xcode projects

Pass in -configuration Debug to xcodebuild when building

Related Issues

Perhaps this is what's causing #7786 and #7308?

[charpeni]

@facebook-github-bot label iOS

[mkonicek]

Hi there! This issue is being closed because it has been inactive for a while.

But don't worry, it will live on with ProductPains! Check out its new home: https://productpains.com/post/react-native/local-cliruniosruniosjs-uses-incorrect-values-when-building-installing-ios-app

Product Pains has been very useful in highlighting the top bugs and feature requests:
https://productpains.com/product/react-native?tab=top

Also, if this issue is a bug, please consider sending a pull request with a fix.