My iOS emulator is no longer opening when I run "phonegap run ios" in the terminal on Mac OS X. I receive no error messages and:
[phonegap] Platform "ios" deployed to emulator.
[phonegap] successfully installed onto emulator
While this is currently a known bug, you can run the emulate command more directly (note you need to build separately):
phonegap local build ios
/platforms/ios/cordova/emulate
You can also run the application using the same technique:
phonegap local build ios
/platforms/ios/cordova/run
NOTE: When using this method to run the app on your phone, the task might get stuck on the splash screen. To fix this, launch the Activity Monitor on your Mac and quit any processes with the name "ios-deploy". From there you can launch the application on your phone by clicking the application icon.
Or, you can even look inside the generated /platforms/ios folder and launch XCode project directly to test in an emulator or on your device. Open project and click the RUN button.
IMPORTANT: with all of the above methods, you MUST run the build command before running:
phonegap local build ios
Not really an answer, but I can say this is a known bug. Here is the bug so you can track it:
https://issues.apache.org/jira/browse/CB-5103
I only had this problem after upgrading to 3.1. I downgraded to 3.0 and it works more reliably:
npm uninstall -g phonegap
npm install -g phonegap#3.0
Also had to delete the platform/ios dir and plugins/ios.json and then run 'phonegap build ios' and 'phonegap run ios'
Related
ionic cordova emulate ios -l <target>
Does not work for me. I get an error suggesting that I am targeting the wrong device even though the device I am targeting is listed as a virtual device when running the command:
ionic cordova emulate --list
When I run the app with Xcode instead it works however it does not reload my edits, even if I stop and start the app again.
*** disclaimer: this is both a quick and dirty solution to the aforementioned issues ***
Before running your app in Xcode (pressing the play button), in your project directory run the following command:
ionic cordova prepare ios
This will load your changes and update your app in Xcode before running it in your emulator so you can then debug and see your edits.
Open to suggestions if anyone has a more direct solution!
Try:
cleaning the build folder in Xcode: cmd+shift+k
In the "Device" menu of Simulator, click "Erase All Content and Settings"
Quit Xcode, simulator and whatever program you are running the emulate command in
Reboot the machine
I am trying to set up a react-native development environment. I would like to set up an iOS emulator (preferably an iPhone 10) to run my app on. I am using a Macbook Pro 2016 running on MacOS 10.14.3. I have installed my react-native app through the command create-react-native-app (running version 2.0.2). I also have installed XCode running version 10.2(10E125). When I scan the QR code that Expo generates and run it on my iPad or my Android device it works just fine, but when I try to load the iOS emulator by pressing i after expo start it returns the error
Trying to open the project in iOS simulator...
Simulator is installed but is identified as 'com.apple.CoreSimulator.SimulatorTrampoline'; don't know what that is.
Simulator not installed. Please visit https://developer.apple.com/xcode/download/ to download Xcode and the iOS simulator. If you already have the latest version of Xcode installed, you may have to run the command `sudo xcode-select -s /Applications/Xcode.app`
I have already tried running the command sudo xcode-select -s /Applications/Xcode.app
I have also tried running the command xcode-select -r
I have also confirmed that in my XCode->Preferences->Locations Command Line Tools is selected as "Xcode 10.2(10E125)"
None of these have worked.
I am expecting that after pressing i after expo start an iOS emulator loads up. Thank you.
-----EDIT-------
After some more research, I found out that running open -a Simulator and then running expo start loads the app on an emulator and works for my purposes. But still if I just run expo start without running open -a Simulator it still gives the same error. I want to ask if this is the best I am going to get?
You might be running an outdated version of Expo. I had this problem when I was download someone's old repo using Expo 27 when Expo 36 came out. After updating to the latest version, it works.
To update packages in your project, npm-check-updates comes in handy.
npm i -g npm-check-updates # installs ncu globally
ncu -u # updates all dependency versions in your local package.json
npm install # updates the packages in node_modules to match
Note: This will update all your dependencies to the latest version. If you don't want to do this, you can find the latest version of expo and change the version in package.json manually.
I ran into the exact same problem all of a sudden. Clicking "Run on iOS Simulator" within the Expo Developer Browser worked 2 days ago but did not work today. Your clue of using open -a Simulator helped me though. I went into Xcode and clicked the Xcode menu > Open Developer Tool > Simulator. This started the Simulator and then I was able to click "Run on iOS Simulator" within the Expo Developer Browser and it worked as expected. If you haven't had the fortune of "Run on iOS Simulator" working, I'm guessing you could just start a simulator, download Expo from the App Store and just use it from there. None of this answers the question as to why the error happens but at least gives a few workarounds for anyone else that might need. All that matters is you get the app running on the Simulator in the end!
I try to make my first steps using React Native. Development for Android (on Windows host) works. Now I wanted to test iOS, and tried to set up a development environment on a MacBook Pro.
Problem: React Native starts the iOS simulator, and then nothing happens any more. The simulator runs OK, but my React native app won't start.
What do I need to do to get my React Native installation going?
More Info:
I set up XCode and React Native according to the docs on the MacBook Pro running OSx 10.13.2 (High Sierra). XCode was installed and tested successfully, including the simulator.
When I installed Node.js I deliberately picked an older version (containing npm 4.2.0), since forums say that React Native does still have problems with npm 5. I also installed Homebrew and Watchman, like stated in the docs.
To initialize an empty project, I used
create-react-native-app HelloWorldProject
and a projet structure got created in my Documents folder.
If I finally fire up my "Hello World" test app using
cd HelloWorldProject
sudo react-native run-ios
the system responds:
Starting packager ...
Starting simulator ...
and then nothing happens. The simulator does indeed start (boot --> apple logo --> progress bar --> IOs start screen), but nothing happens afterwards.
Edit
I have given up on React Native for several reasons, I leave this question here for documentary purposes, but I cannot verify or accept any answer, I don't have a React Native development environment any more.
It's probably because you used sudo. /.expo/ is owned by root. Try to change the ownership with
sudo chown -R `whoami` ~/.expo
Refer https://github.com/react-community/create-react-native-app/issues/422
Even everything in your app seems fine, sometime you face the issue that the app is taking too much time to load either through terminal or Xcode. If there is no any other specific issue with your project, the following solution works most of the time:
Go to your app folder and then go to 'iOS' folder.
Delete 'Podfile.lock' and 'Pods' folder.
Execute the following command in Terminal from your 'ios' folder, that will bring back the 'Podfile.lock' and required Pods will be installed to 'Pods' folder:
pod install
Delete the 'build' folder in your 'iOS' folder.
Run the following command in terminal:
react-native run-ios
While the terminal is running, open '.xcworkspace' in your 'ios' folder in Xcode.
The above steps will make sure it will be build your react native project newly and will run on the simulator.
Thanks
Wasantha Wijayaratna
When I run cordova run ios --emulator the script exits successfully and tells me, that there's a file (console.log) inside platforms/ios/cordova but there's no such file although I used console.log several times in my code.
Also, Safari does not show my device in the developer menu when it's connected via USB and running the app. I used cordova run ios --device to run the app.
Am I looking in the wrong place? Does the script lie? :D
I am trying to create a simple project with last phonegap version:
$ phonegap create my-project
$ phonegap build ios
$ phonegap install ios
All works perfectly and I see emulator with my simple application.
But I can't find documentation on how to run my application on device(iphone, for example) and not on a simulator.
All documentation by cordova / phonegap based on examples with cordova's template for xcode.
But last cordova's version don't have template for xcode and all that I need - cli, if I understand correctly?
I already registered as IOS developer and I have a valid iPhone development certificate.
When I connect my device - I can see it in xcode and I can run native application on my device.
But only via xcode.
I will be grateful to any advice.
If the cordova app builds and runs on the simulator, try running cordova run ios --device
This worked for me, when before it was only hitting the simulator.
Alternatively, if that STILL doesn't work for you, when you run codova build ios, to just build the app, you could use itunes to sync the generated .app file in <project_folder>/platforms/ios/build/device/AppName.app
There is an Apple CLI tool canned xcodebuild, as well as this wrapper around it by Facebook. I'd suggest trying out either that or look at the build-in xcodebuild shipped with xcode.
Hopefully one of them will work.
https://github.com/facebook/xctool
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcodebuild.1.html
If you use Cordova CLI, you should be able to do this:
cordova run ios