I\'m working with Eclipse on Windows 7, x64. I\'m getting an error when running ADT bundle of android development:
Error: Error parsing the AVDs
AVD cant find SDK root, possibly because they are in different directories.Set your environment variables as shown in the screenshot below:
ANDROID_HOMEDeprecated (in Android Studio), use ANDROID_SDK_ROOT instead.
ANDROID_SDK_ROOTInstallation directory of Android SDK package.
Example: C:\AndroidSDK or /usr/local/android-sdk/
ANDROID_NDK_ROOTInstallation directory of Android NDK package. (WITHOUT ANY SPACE)
Example: C:\AndroidNDK or /usr/local/android-ndk/
ANDROID_SDK_HOMELocation of SDK related data/user files.
Example: C:\Users\<USERNAME>\.android\ or ~/.android/
ANDROID_EMULATOR_HOMELocation of emulator-specific data files.
Example: C:\Users\<USERNAME>\.android\ or ~/.android/
ANDROID_AVD_HOMELocation of AVD-specific data files.
Example: C:\Users\<USERNAME>\.android\avd\ or ~/.android/avd/
JDK_HOME and JAVA_HOMEInstallation directory of JDK (aka Java SDK) package.
Note: This is used to run Android Studio(and other Java-based applications). Actually when you run Android Studio, it checks for JDK_HOME then JAVA_HOME environment variables to use.
Android SDK
Installing the Android SDK is also necessary. The Android SDK provides you the API libraries and developer tools necessary to build, test, and debug apps for Android.
Cordova requires the ANDROID_HOME environment variable to be set. This should point to the [ANDROID_SDK_DIR]\android-sdk directory (for example c:\android\android-sdk).
Next, update your PATH to include the tools/ and platform-tools/ folder in that folder. So, using ANDROID_HOME, you would add both %ANDROID_HOME%\tools and %ANDROID_HOME%\platform-tools.
Reference : http://ionicframework.com/docs/v1/guide/installation.html
from command prompt:
set ANDROID_SDK_HOME=C:\[wherever your sdk folder is]
should do the trick.
open your adt and open preferences, then modify directory with your sdk dir, it may help you follow the pic link indication

Just set the path to the Android SDK directory
flutter config --android-sdk c:\android\sdk