Tweak app name error message

Author: gaearon

global-cli/index.js

@@ -29,6 +29,9 @@
 // Do not make breaking changes! We absolutely don't want to have to
 // tell people to update their global version of create-react-app.
 //
+// Also be careful with new language features.
+// This file must work on Node 0.10+.
+//
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // /!\ DO NOT MODIFY THIS FILE /!\
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -190,15 +193,15 @@ function checkAppName(appName) {
  if (allDependencies.indexOf(appName) >= 0) {
  console.error(
  chalk.red(
- `Can't use "${appName}" as the app name because a dependency with the same name exists.\n\n` +
- `Following names ${chalk.red.bold('must not')} be used:\n\n`
- )
-
- +
-
+ 'We cannot create a project called `' + appName + '` because a dependency with the same name exists.\n' +
+ 'Due to the way npm works, the following names are not allowed:\n\n'
+ ) +
  chalk.cyan(
- allDependencies.map(depName => ` ${depName}`).join('\n')
- )
+ allDependencies.map(function(depName) {
+ return ' ' + depName;
+ }).join('\n')
+ ) +
+ chalk.red('\n\nPlease choose a different project name.')
  );
  process.exit(1);
  }