React-native-config: The environment variables are inaccessible in the iOS example

[jbiotid]

Running the example in the repo runs as expected on android. However running ENVFILE=.env.production react-native run-ios launches the example app, with a config object with no set properties. The image below shows what I see in iOS

Also I do not see a scheme for 'example (Production)' as suggested by the example readme. Everything works as expected on android.

System Info
OS: OSX High Sierra
React-Native: 0.50.4
Node: 7.3.0
XCode: Version 9.2

[jbiotid]

after much trouble shooting, the issue seems to be related with the latest release of react-native-config. I ended up down grading to 0.8.1 as suggested in https://github.com/luggit/react-native-config/issues/129.

[Ayyagaries]

My be fixed in IOS but still there on Android I am getting the config as undefined :(

[jbiotid]

So tried working on it for a little while longer and I later realize I had spaces in properties. Android accepts it, but IOS simply return undefined for the properties.

So if you have

API=www.yahoo.com/api ✓ this is good
API=www.yahoo.com/api ✖this is bad

Also just to make sure, did you implement this part of the documentation

`project.ext.envConfigFiles = [
debug: ".env.development",
release: ".env.production",
anothercustombuild: ".env",
]

apply from: project(':react-native-config').projectDir.getPath() + "/dotenv.gradle"`

[Ayyagaries]

https://medium.com/the-react-native-log/how-to-rename-a-react-native-app-dafd92161c35 This worked for me in both IOS and ANDROID
Hope this helps

[romandecker]

I'm facing the exact same issue. Followed all the steps to a tee. Everything works in android, but in iOS, I get an empty Config. I tried basically all the fixes suggested here

• react-native: 0.54.2
• react-native-config: 0.11.5
• react-native-cli: 2.0.1

[Sam-Hoult]

@DeX3 Currently react-native link react-native-config doesn't work correctly with RN 0.50+
You can either downgrade to a previous react-native e.g. version 0.49.3 and then do the react-native link, then upgrade back to the current version. Or try to just add it manually by add the library and linking it into the build phase:

[alxyuu]

@Sam-Hoult I downgraded to 0.49 and then linked before returning to 0.51. the method and header files are being generated as expected but xcode is still having trouble finding GeneratedDotEnv.m when building ReactNativeConfig.m, presumably because it's not actually looking in SYMROOT. any ideas?

[Sam-Hoult]

@alxyuu Yea, the docs also give a wrong location for that. here's mine using ${CONFIGURATION_BUILD_DIR}/../GeneratedInfoPlistDotEnv.h as the Info.plist preprocessor path

[alxyuu]

@Sam-Hoult I'm referring to GeneratedDotEnv.m when building ReactNativeConfig.m, not the header for preprocessing info.plist. This makes the project unable to compile even if info.plist preprocessing is not used

[avioli]

Thanks @Sam-Hoult.

My case is - two targets, first one was ok and running, while the second one didn't. Turns out the linker didn't add the framework.

Then I got the /ios/build/Build/Products/GeneratedDotEnv.m and GeneratedInfoPlistDotEnv.h generated.

[ferlopezm94]

This tutorial helped me: https://medium.com/differential/managing-configuration-in-react-native-cd2dfb5e6f7b.

[timotew]

I was able to get it working on iOS, When I write constants like this
SERVER_URL = http://example.com
it's seen on android but not on iOS. Somehow after I closed the gap and make it look like this SERVER_URL=http://example.com
iOS started seeing the constants too. Now both platforms are cool 👍 .

Note: This was on a real project not the Example project.

"react": "16.4.1", "react-native": "^0.56.0", "react-native-config": "^0.11.5",

[tarun29061990]

I am not able to run this thing in IOS. I have done all the settings, still no success. My configuration files are located in config folder. I have added a pre action in the build of the scheme and that is
echo "config/.env.prod" > /tmp/envfile.
Please help

[pradhul]

facing the same issue here, seems like IOS is not loading the constants from .env files. I created a custom scheme for DEV environment. When I check cat /tmp/envfile I am seeing the string .env.dev . Is this expected I was thinking I will see the contents? anybody faced/solved this ?

[Dbroqua]

Same issue to @pradhul .

On Android all works fine.

But on iOS my env file seems to be unread. At this time I tries only the "play" button on Xcode.

Any ideas?

Regards

EDIT : After some tests it's works!

I've rebuild my projects many times but the solutions seems to be here: https://github.com/luggit/react-native-config/issues/83#issuecomment-362359389

[Iamhere]

Faced the same issue to @pradhul .
I removed ios/build folder and it worked.