Try removing incompatible guard-bundler

Author: rmosolgo

.travis.yml

@@ -14,11 +14,8 @@ env:
     - CODECLIMATE_REPO_TOKEN=f5b27b2e25d3f4e199bb2566fb4fd4507144a004c71d4aa33a32c2df5f940333
 
 before_install:
-  - bundle --version
-  - gem uninstall bundler --force
-  - bundle --version || echo 'no bundler'
-  - gem install bundler -v '< 2'
-  - bundle --version
+  - gem update --system
+  - gem install bundler
 
 install: bundle install --jobs=3 --retry=3 --without=jekyll_plugins
 

Guardfile

@@ -1,9 +1,4 @@
 # frozen_string_literal: true
-guard :bundler do
-  watch("Gemfile")
-  # Uncomment next line if your Gemfile contains the `gemspec' command.
-  watch(/^.+\.gemspec/)
-end
 
 guard :minitest, test_file_patterns: ["*_spec.rb"] do
   # with Minitest::Spec

graphql.gemspec

@@ -23,7 +23,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency "codeclimate-test-reporter", "~>0.4"
   s.add_development_dependency "concurrent-ruby", "~>1.0"
   s.add_development_dependency "guard", "~> 2.12"
-  s.add_development_dependency "guard-bundler", "~> 2.1"
   s.add_development_dependency "guard-minitest", "~> 2.4"
   s.add_development_dependency "guard-rake"
   s.add_development_dependency "guard-rubocop"