Im using this library for the ftp upload:
This my code but it isnt working:
 FTPClient client = new FTPClient();
                        try {
                            client.connect("xx.xx.xx.xx", 21);
                            client.login("xxx", "xx");
                            client.setType(FTPClient.TYPE_BINARY);
                            client.changeDirectory("/picts_products/");
                            File f = new File("/logo.png");
                            client.upload(f);
I alway get this error: java.io.FileNotFoundException. Do you know why?
UPDATE!
Since API 23 the permissions must be checked by the activity! This solved my problem:
Exception 'open failed: EACCES (Permission denied)' on Android
 
    