apache - 550 Error on Uploading Files using FTP over SSL Android -

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i'm using apache commonsnet library ftp. i'm able create folders in ftp server. whenever storefile it's failing , returning me 550 error.

ftpupload

private boolean ftpupload(string remotefilepath) {     ftpsclient ftpsclient = null;     try {         ftpsclient = new ftpsclient("ssl", true);     } catch (nosuchalgorithmexception e) {         e.printstacktrace();     }     fileinputstream fis;     boolean result = false;     try {         if (ftpsclient != null) {             ftpsclient.setconnecttimeout(10000);              keymanagerfactory kmf = keymanagerfactory.getinstance(keymanagerfactory.getdefaultalgorithm());             kmf.init(null, null);             keymanager km = kmf.getkeymanagers()[0];             ftpsclient.setkeymanager(km);              ftpsclient.connect(inetaddress.getbyname(getstring(r.string.ftp_hostname)), 990);             boolean isloggedin = ftpsclient.login(getstring(r.string.ftp_username), getstring(r.string.ftp_password));              if (isloggedin) {                 // on successful login                 ftpsclient.setfiletype(ftp.binary_file_type);                 ftpsclient.enterlocalpassivemode();                 ftpsclient.setbuffersize(1000);                  // check remotepath exists else create folders                 int index = remotefilepath.lastindexof("/");                 string remotedir = null;                 if (index != -1)                     remotedir = remotefilepath.substring(0, index);                  if (remotedir != null)                 /**                  * changeworkingdirectory returns whether specified directory exist or not.                  * if not exist in remote, create folders                  */                     if (!ftpsclient.changeworkingdirectory(remotedir)) {                         if (makedirectories(ftpsclient, remotedir))                             ftpsclient.changeworkingdirectory(remotefilepath);                         else                             log.e(this.getclass().getsimplename(), "remote path not available");                     } else                         ftpsclient.changeworkingdirectory(remotefilepath);                  //testing                 file localfilepath = new file(environment.getexternalstoragedirectory() + "/qwerty.png");                  ftpsclient.addprotocolcommandlistener(new printcommandlistener(new printwriter(system.out)));                  try{                     int reply = ftpsclient.getreplycode();                     if (!ftpreply.ispositivecompletion(reply)) {                         ftpsclient.disconnect();                         log.e(this.getclass().getsimplename(), "connection refused server");                         return false;                     }                 } catch(exception e) {                     e.printstacktrace();                 }                  // stream of file                 string testname = localfilepath.getname();                 fis = new fileinputstream(localfilepath);                  // upload file ftp server                 result = ftpsclient.storefile(testname, fis);                 fis.close();                  log.i(this.getclass().getsimplename(), "ftp store result " + result);                 if (result) {                     result = true;                 } else {                     result = false;                 }             } else {                 log.e(this.getclass().getsimplename(), "login fail!");                 result = false;             }              // logout ftp server             ftpsclient.logout();          }     } catch (exception e) {         log.e(this.getclass().getsimplename(), "ftp exception!");         result = false;     }      return result; }

it's connecting, authenticating, created new folder storingfile/getreplycode returns 550. wrong here? have removed keymanagerfactory no luck.


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