Unable to start the app

[mtapdilli]

• Running nx start my-app gives below error :
  **The run-ios build requires OSX to run**

• Running nx run-android my-app gives below error :
  EPERM: operation not permitted, symlink '_**path to the workspace**_\node_modules\react-native' -> '*_path to the workspace*_\apps\my-app\node_modules\react-native'

• Running nx build-android my-app gives below error :
  spawn _**path to the workspace**_\apps\my-app\android\gradlew ENOENT

Platform : Windows
Nx --version : 10.3.3

Steps Followed :

• Ran npx create-nx-workspace@latest and selected empty workspace layout
  And then ran below commands as suggested by @jaysoo in this comment
• yarn add @nrwl/react-native@10.4.0-beta.2
  nx g @nrwl/react-native:app my-app
  ....
  ....

[nclarx]

If you're on Windows you won't have the simulator for iOS - that's a MacOS only thing as far as I know. Others who know the ecosystem better might have some suggestions?

[jaysoo]

@nclarx is right, iOS requires a toolchain that only OSX provides.

For Android, I it looks like the symlink operation didn't work for you -- React Native has hard-coded node_modules paths in some of it's scripts so the symlink is needed to work. I'll double-check on a Windows machine.

[mtapdilli]

Sure @jaysoo . I was only trying to run Android app, did not touch iOS. I ran nx start my-app as it was mentioned that it will "Start JS bundler" and got the error that I have mentioned i.e., The run-ios build requires OSX to run

[jaysoo]

Oh yes, I see there's an erroneous platform check for the bundler builder. I'll patch that.

[jaysoo]

@mtapdilli Can you try 10.4.0-beta.5?

[jaysoo]

Investigating the symlink issue. I can reproduce it in Windows.

[jaysoo]

@mtapdilli Can you try 10.4.0-beta.6?

[jaysoo]

I'm able to start the bundler and run the android app in Windows. Closing this issue.

[mtapdilli]

Hey @jaysoo . Just tried beta.6. I Am able to run the android app. Cheers 🥂

Note : I was getting an error like "Exception in thread "main" java.util.zip.ZipException: error in opening zip file". I got it to work after clearing the ".gradle\wrapper\dists\gradle-6.0.1-all\99d3u8wxs16ndehh90lbbir67" directory. Users might get this if they already the gradle zip file in the directory. So, just a leaving a note here.

And below one still persists :
Running nx build-android my-app gives below error :
spawn path to the workspace\apps\my-app\android\gradlew ENOENT

I can see it has got something to do with permission. Let me know if you have any inputs on this.

[mtapdilli]

@jaysoo Not sure if this is somehow causing the #23

Can we just re-open this to track the below issue that was left out ?

• Running nx build-android my-app gives below error :
  spawn path to the workspace\apps\my-app\android\gradlew ENOENT

[jaysoo]

ENOENT is because the file is not found. I'll take to take a look on a Windows machine again, but it's not a permissions issue.

[mtapdilli]

@jaysoo I could get build-android command get to work in my system after changing this line from join(projectRoot, 'android/gradlew') to join(projectRoot, 'android/gradlew.bat')

I am thinking root cause might this : nodejs/node-v0.x-archive#2318 (comment)

I think we will have to update it to run gradlew/gradlew.bat based on the platform. You review it and take a call.

[jaysoo]

We're doing both now:

• https://github.com/nrwl/nx-react-native/blob/main/packages/react-native/src/builders/build-android/build-android.impl.ts#L28-L29
• https://github.com/nrwl/nx-react-native/blob/main/packages/react-native/src/builders/run-android/run-android.impl.ts#L39-L40

Don't need the platform check since chmodding the unused one is fine.