Rakefile in kmts-2.0.1 vs Rakefile in kmts-3.0.0

@@ -1,5 +1,10 @@
 require 'bundler'
-require 'rspec/core/rake_task'
 Bundler::GemHelper.install_tasks
 
-RSpec::Core::RakeTask.new(:spec)
+begin
+  require 'rspec/core/rake_task'
+  RSpec::Core::RakeTask.new(:spec)
+rescue LoadError
+end
+
+task default: 'spec'