Flutter-permission-handler: Building for iOS fails plugin version 2.1.2

[Gavmcdonald]

🐛 Bug Report

Building for iOS fails

=== BUILD TARGET url_launcher OF PROJECT Pods WITH CONFIGURATION Debug ===
/Development/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-2.1.2/ios/Classes/PermissionManager.swift:50:45: error: type 'UIApplication' has no member 'UIApplicationOpenSettingsURLString'
guard let url = URL(string: UIApplication.UIApplicationOpenSettingsURLString),
^~~~~ ~~~~~~~~~~
/Development/flutter/.pub-cache/hosted/pub.dartlang.org/permission_handler-2.1.2/ios/Classes/PermissionManager.swift:59:77: error: type 'UIApplication' has no member 'UIApplicationOpenSettingsURLString'
let success = UIApplication.shared.openURL(URL.init(string: UIApplication.UIApplicationOpenSettingsURLString)!)

Version: 2.1.2

Platform:

• [x] :iphone: iOS
• [ ] :robot: Android

[kmckinley]

Running into the same problem.

[chenparty]

the same problem, only in ios .

[deepak-gehlot]

Same problem, only in IOS.

[daryll-fourie]

Same problem on my side, also only in iOS... Any update on this?

[daryll-fourie]

Forcing Flutter to use V2.1.0 fixes the problem for now...
(And if you use the "Geolocator" package, then force both packages to use V2.1.0)

example code

geolocator: 2.1.0
permission_handler: 2.1.0

Remember to run flutter clean in the terminal and then get your .yaml dependencies again before running your app.

[Gavmcdonald]

Still didn't resolve issue for me ¯\_(ツ)_/¯

[kmckinley]

@daryll-fourie That worked for me.

[firsthour]

I had to downgrade geolocator to 2.0.2 and permission_handler to 2.0.1 to get this to work.

[b4rtaz]

Version 2.1.2 works for me, after I updated ios/Podfile:

target 'Runner' do
  use_frameworks! # < ADD THIS

  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
  ...

[gburnham]

Thank you @daryll-fourie! I should have looked here first!

[ahmedb]

I had this problem too. The root-cause is actually that the project generated by Flutter is set to "Swift 4.0" by default, instead of "Swift 4.2".

I had a Pull Request to rollback the API changes for compatibility but 4.0, but closed it because I wasn't sure if it was appropriate for the develop branch.

There are a couple of ways to fix this:

1. Manually update your "Runner.xcodeproj" to use "4.2" for "Swift Language Version" (You need to update the Project AND Target)
2. Roll back to tag 2.1.0 or pull a fork with the API rollback (I put the changes on my 'develop' fork: https://github.com/ahmedb/flutter-permission-handler)

[562218352]

1: down grade permission_handler's version to 2.1.0
if running into this error : can't find file : , then go the sec step.
2： open permission_handler source code, find "PermissionHandlerPlugin.m" ,
and edit into "permission_handler-Swift.h"

solve my issue

[muhammadkhayyam]

Dear 562218352 ,
Can you explain in detail your resolution , I am new to mobile development, your detail help will be highly appreciated.

Thanks.

[dokinkon]

@daryll-fourie That worked for me.

[mvanbeusekom]

@muhammadkhayyam, @ahmedb, @562218352, to be able to use version 2.1.2 of the permission handler you'll have to use Xcode 10.1 or higher and make sure you update your Podfile to reflect the following changes:

In your Podfile make sure you add the line use_frameworks! (best is to add this line directly below the target Runner do like so:

target 'Runner' do
  use_frameworks!

Also in your Podfile make sure you add the line config.build_settings['SWIFT_VERSION'] = '4.2' to the post_installer block. After adding this line the post_installer block should look like this:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['ENABLE_BITCODE'] = 'NO'
      config.build_settings['SWIFT_VERSION'] = '4.2'
    end
  end
end