It seems you are setting your paths wrong. Make sure the system variables are set as follows:
Android
- Ensure that you have updated the SDK API level 19 through the SDK Manager
- Set the ADT_HOME environment variable to the SDK install location (default: C:\Users\<user>\AppData\Local\Android\android-sdk)
- Add to System Path: %ADT_HOME%\tools;%ADT_HOME%\platform-tools
Note: ADT_HOME is NOT ANDROID_HOME
Java (x86 version only)
- Set the JAVA_HOME environment variable to C:/Program Files/Java/jdk1.7.0_55
- Add to System Path: %JAVA_HOME%\bin
Ant
- Set the ANT_HOME environment to point to the Ant folder path (C/ant-1.x.x)
- Add to System Path: %ANT_HOME%\bin
. .
. iOS, Mac .
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