Travis CI fails iOS Build - ios

Question

I am trying to build an iOS(swift) project with Pods, with Travis CI but I am getting the the following error.
Analyzing dependencies
[!] The version of CocoaPods used to generate the lockfile (1.2.1.beta.1) is higher than the version of the current executable (1.2.0). Incompatibility issues may arise.
Pre-downloading: `SwiftValidator` from `https://github.com/jpotts18/SwiftValidator.git`, commit `2a6c23ad9efd76127f6109445515cb9780e5ad92`
[!] Unable to satisfy the following requirements:
- `Marshal (= 1.2.4)` required by `Podfile`
- `Marshal (= 1.2.4)` required by `Podfile.lock`
None of your spec sources contain a spec satisfying the dependency: `Marshal (= 1.2.4)`.
You have either:
* out-of-date source repos which you can update with `pod repo update`.
* mistyped the name or version.
* not added the source repo that hosts the Podspec to your Podfile.
Note: as of CocoaPods 1.0, `pod repo update` does not happen on `pod install` by default.
The command "eval pod install " failed 3 times.
The command "pod install" failed and exited with 1 during .
Here is my .travis.yml file:
language: swift
osx_image: xcode8.3
branches:
only:
- develop
- master
env:
- LC_CTYPE=en_US.UTF-8 LANG=en_US.UTF-8
before_install:
- rvm install ruby-2.2.2
- gem install cocoapods
- gem install xcpretty -N
- brew update
- brew install swiftlint || true
script:
- set -o pipefail
- xcodebuild -workspace Invision.xcworkspace -scheme Invision -sdk iphonesimulator ONLY_ACTIVE_ARCH=NO | xcpretty -c
- swiftlint
Reading through the log I can see that there is something wrong with the Pods. So here is my Podfile
platform :ios, '8.0'
target 'Invision' do
# Comment the next line if you're not using Swift and don't want to use dynamic frameworks
use_frameworks!
# Pods for Invision
pod 'ZLSwipeableViewSwift'
pod 'Moya'
pod 'Marshal', '1.2.4'
pod 'SwiftValidator', :git => 'https://github.com/jpotts18/SwiftValidator.git', :branch => 'master'
pod 'Log'
target 'InvisionTests' do
inherit! :search_paths
# Pods for testing
end
target 'InvisionUITests' do
inherit! :search_paths
# Pods for testing
end
end
I have also read about how to solve the problem and some of the suggestions were:
pod update Marashl - didn't work
Any ideas of how to solve this problem ?

Answer 1

It seems the code you pushed using CocoaPods 1.2.1.beta.1 but Travis-CI supports 1.2.0. gem install cocoapods installs the stable version of CocoaPods try installing beta version

Answer 2

xcode8.3 isn't supported yet hence you might be routed to the default image which is xcode7.3. See https://docs.travis-ci.com/user/osx-ci-environment/#OS-X-Version.
Can you try with osx_image: xcode8.2?
Update 2017-05-15: xcode8.3 is now supported: https://blog.travis-ci.com/2017-04-19-xcode-832-is-here.