SolvedCocoaPods Can't install pod with Xcode 8/Swift 3/Cocoapods 1.1.0 RC2

Report

What did you do?

/usr/local/bin/pod install

What did you expect to happen?

Install all pod dependencies correctly.

What happened instead?

The install failed and no workspace is created.

CocoaPods Environment

Stack

   CocoaPods : 1.1.0.rc.2
        Ruby : ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin15]
    RubyGems : 2.5.1
        Host : Mac OS X 10.11.6 (15G1004)
       Xcode : 8.0 (8A218a)
         Git : git version 2.6.4
Ruby lib dir : /usr/local/Cellar/ruby/2.3.0/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 90c40f1bd8fb3738b8e1b725c3ffe9ac284ac9bb

Plugins

cocoapods-deintegrate : 1.0.1
cocoapods-plugins     : 1.0.0
cocoapods-search      : 1.0.0
cocoapods-stats       : 1.0.0
cocoapods-trunk       : 1.0.0
cocoapods-try         : 1.1.0

Podfile

platform :ios, '9.0'

source 'https://github.com/CocoaPods/Specs.git'
use_frameworks!

def shared_pods
  pod 'PromiseKit', '~> 4'
end

target 'AwaitKitExample' do
  shared_pods
end

target 'AwaitKitTests' do
  shared_pods
end

Error

Errno::EEXIST - File exists @ dir_s_mkdir - /Users/yannickloriot/Development/perso/AwaitKit/Example/Pods/Target Support Files/PromiseKit
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator/target_installer.rb:92:in `mkdir'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator/target_installer.rb:92:in `mkdir'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator/target_installer.rb:92:in `create_support_files_dir'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator/pod_target_installer.rb:21:in `block in install!'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/user_interface.rb:142:in `message'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator/pod_target_installer.rb:19:in `install!'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator.rb:155:in `block (2 levels) in install_libraries'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator.rb:153:in `each'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator.rb:153:in `block in install_libraries'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/user_interface.rb:142:in `message'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator.rb:152:in `install_libraries'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer/xcode/pods_project_generator.rb:64:in `generate!'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer.rb:179:in `block in generate_pods_project'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/user_interface.rb:64:in `section'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer.rb:178:in `generate_pods_project'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/installer.rb:115:in `install!'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/command/install.rb:37:in `run'
/usr/local/lib/ruby/gems/2.3.0/gems/claide-1.0.0/lib/claide/command.rb:334:in `run'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/lib/cocoapods/command.rb:50:in `run'
/usr/local/lib/ruby/gems/2.3.0/gems/cocoapods-1.1.0.rc.2/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'

Project that demonstrates the issue

AwaitKit example in the swift3 branch: https://github.com/yannickl/AwaitKit/tree/swift3/Example

41 Answers

✔️Accepted Answer

@andrew8712 Sorry about that! - If you run that in Terminal, before running pod spec lint or pod trunk push, it will create a .swift-version file that will be used by CocoaPods to determine which Swift version we should give Xcode.

Other Answers:

@andrew8712 If you echo "3.0" > .swift-version and try again, then it should work

Fixed by setting Use Legacy Swift Language Version build setting to No for each target.

I'm experiencing the same issue as @Meniny on my pod spec: I'm trying to publish NetUtils v3.0.0. pod spec lint works, but pod trunk push gives:

> $ pod trunk push                                                                                                                            [±master ]

[!] Found podspec `NetUtils.podspec.json`
Updating spec repo `master`
Validating podspec
 -> NetUtils (3.0.0)

[!] The Pod Specification did not pass validation.
The following validation failed:
- Warnings: Unrecognized `pushed_with_swift_version` key.

Not knowing what to do, I added the .swift-version file and even pushed that to github, but that didn't help. Hoping for a quick solution...

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