Getting error while doing api call and android app is crash -

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i new android, m trying api call php , have done 1 example it, work on computer fine same app package gives error in eclipse on laptop.

public void postdata() {     // create new httpclient , post header     httpclient httpclient = new defaulthttpclient();     httppost httppost = new httppost("http://www.yoursite.com/script.php");      try {         // add data         list<namevaluepair> namevaluepairs = new arraylist<namevaluepair>(2);         namevaluepairs.add(new basicnamevaluepair("id", "12345"));         namevaluepairs.add(new basicnamevaluepair("stringdata", "hi"));         httppost.setentity(new urlencodedformentity(namevaluepairs));          // execute http post request         httpresponse response = httpclient.execute(httppost);      } catch (clientprotocolexception e) {         // todo auto-generated catch block     } catch (ioexception e) {         // todo auto-generated catch block     } } `

hear error log, got of errors.

//try following way     //list<namevaluepair> namevaluepairs  httpclient hc = new defaulthttpclient(); httppost hp = new httppost(url); urlencodedformentity obj=new urlencodedformentity(namevaluepairs); obj.setchunked(true); hp.setentity(obj); httpresponse hr = hc.execute(hp);    httpentity = hr.getentity();

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