Bumped version for consistency with past Golang version, and improved…

… error message. Closes #13

lib/commands/list.dart

@@ -18,7 +18,7 @@ class ListCommand extends Command {
   Future<void> run() async {
     final choices = await flutterListInstalledSdks();
     if (choices.length == 0) {
-      logger.stdout('No SDKs have been installed.');
+      logger.stdout('No SDKs have been installed yet.');
       exit(0);
     }
 

lib/utils/flutter_tools.dart

@@ -128,6 +128,9 @@ Future<void> flutterSdkRemove(String version) async {
 
 /// Lists Installed Flutter SDK Version
 Future<List<String>> flutterListInstalledSdks() async {
+  if (!await kVersionsDir.exists()) {
+    return [];
+  }
   final versions = kVersionsDir.listSync();
 
   final installedVersions = versions

pubspec.yaml

@@ -1,6 +1,6 @@
 name: fvm
 description: A simple version manager for Flutter.
-version: 0.0.5
+version: 0.6.0
 homepage: https://github.com/leoafarias/fvm
 author: Leo Farias <[email protected]>