Merge branch 'hotfix/54'

Close $54
Fixes zendframework/zend-expressive-skeleton#244
Fixes zendframework/zend-expressive-skeleton#243

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.1.1 - TBD
+## 2.1.1 - 2018-03-21
 
 ### Added
 
@@ -22,7 +22,8 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Fixed
 
-- Nothing.
+- [#54](https://github.com/zendframework/zend-component-installer/pull/54) fixes
+  issues when run with symfony/console v4 releases.
 
 ## 2.1.0 - 2018-02-08
 

src/ComponentInstaller.php

@@ -18,7 +18,6 @@
 use Zend\ComponentInstaller\Injector\AbstractInjector;
 use Zend\ComponentInstaller\Injector\ConfigInjectorChain;
 use Zend\ComponentInstaller\Injector\InjectorInterface;
-use Zend\ComponentInstaller\Injector\NoopInjector;
 
 /**
  * If a package represents a component module, update the application configuration.
@@ -449,7 +448,7 @@ private function promptForConfigOption(
         $ask[] = sprintf('  Make your selection (default is <comment>%d</comment>):', $default);
 
         while (true) {
-            $answer = $this->io->ask($ask, $default);
+            $answer = $this->io->ask(implode($ask), $default);
 
             if (is_numeric($answer) && isset($options[(int) $answer])) {
                 $injector = $options[(int) $answer]->getInjector();
@@ -474,7 +473,7 @@ private function promptToRememberOption(Injector\InjectorInterface $injector, $p
         $ask = ["\n  <question>Remember this option for other packages of the same type? (Y/n)</question>"];
 
         while (true) {
-            $answer = strtolower($this->io->ask($ask, 'y'));
+            $answer = strtolower($this->io->ask(implode($ask), 'y'));
 
             switch ($answer) {
                 case 'y':