when I tried to build cordova sample project command line shows following error . how to fix this?
 C:\Users\Nuwanst\Documents\cordova_dev\cordova\hello>cordova build
    ANDROID_HOME=C:\Users\Nuwanst\AppData\Local\Android\sdk2
    JAVA_HOME=C:\Program Files\Java\jdk1.8.0_131
    Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK.
    Looked here: C:\Users\Nuwanst\AppData\Local\Android\sdk2\tools\templates\gradle\wrapper