uiautomator - How To execute Robotium using ANT build -

i trying run robotium using ant build giving error :   //the code select text using robotium .  import com.android.uiautomator.core.uiobject; import com.android.uiautomator.core.uiobjectnotfoundexception; import com.android.uiautomator.core.uiscrollable; import com.android.uiautomator.core.uiselector; import android.webkit.webview; import com.android.uiautomator.testrunner.uiautomatortestcase; import com.jayway.android.robotium.solo.solo;  uiobject policy = new uiobject(new uiselector().classname(         "android.widget.textview").textcontains(t_o_s)); policy.clickandwaitfornewwindow(); solo.clickontext("privacy policy");  -pre-compile:  compile:     [javac] compiling 6 source files c:\eclipse\newclientautomation\bin\clas es     [javac] c:\eclipse\newclientautomation\src\com\android\test\ca\ahatest.java 18: error: package com.jayway.android.robotium.solo not exist     [javac] import com.jayway.android.robotium.solo.solo;     [javac]                                        ^     [javac] c:\eclipse\newclientautomation\src\com\android\test\ca\ahatest.java 40: error: cannot find symbol     [javac]     private solo solo ;     [javac]             ^     [javac]   symbol:   class solo     [javac]   location: class ahatest     [javac] 2 errors  build failed   please provide me solution. how include robotium class ant. 

how configure build path in ant include robotium .class file. using uiautoamator screenshot function take screen , puttin robotium solo class select text in web view page. want use robotium class in uiautomator using ant build.