MAGETWO-44042: Component Installation is not ready to be used from UI after composer create-project

- Issue 3: "Try again" button is not available - fixed

Author: Ivan Gavryshko

setup/pub/magento/setup/readiness-check.js

@@ -156,7 +156,9 @@ angular.module('readiness-check', [])
                 process: function(data) {
                     $scope.extensions.processed = true;
                     angular.extend($scope.extensions, data);
-                    $scope.extensions.length = Object.keys($scope.extensions.data.required).length;
+                    if(data.responseType !== 'error') {
+                        $scope.extensions.length = Object.keys($scope.extensions.data.required).length;
+                    }
                     $scope.updateOnProcessed($scope.extensions.responseType);
                     $scope.stopProgress();
                 },