Update README.md
diff --git a/packages/flutter/README.md b/packages/flutter/README.md
index 5deef2d..dcd1a77 100644
--- a/packages/flutter/README.md
+++ b/packages/flutter/README.md
@@ -4,7 +4,7 @@
Sky apps are written in Dart. To get started, we need to set up Dart SDK:
- Install the [Dart SDK](https://www.dartlang.org/downloads/):
- - Mac: `brew tap dart-lang/dart && brew install dart`
+ - Mac: `brew tap dart-lang/dart && brew install dart --devel`
- Linux: See [https://www.dartlang.org/downloads/linux.html](https://www.dartlang.org/downloads/linux.html)
- Ensure that `$DART_SDK` is set to the path of your Dart SDK and that the
`dart` and `pub` executables are on your `$PATH`.
@@ -57,6 +57,8 @@
- Install the `adb` tool from the [Android SDK](https://developer.android.com/sdk/installing/index.html?pkg=tools):
- Mac: `brew install android-platform-tools`
- Linux: `sudo apt-get install android-tools-adb`
+ - If the version of `adb` provided by your Linux distribution is too old,
+ you might need to (install the Android SDK manually)[https://developer.android.com/sdk/installing/index.html?pkg=tools].
- Enable developer mode on your device by visiting `Settings > About phone`
and tapping the `Build number` field five times.
