message: fix the bug of build
diff: @@ -2160,7 +2160,10 @@ Database::build(const string& _rdf_file)
  //system(cmd.c_str());
  //cout << "signature file removed" << endl;
  - this->if_loaded = true;
  + // this->if_loaded = true;
  + this->saveDBInfoFile();
  + this->writeIDinfo();
  + this->initIDinfo();
  return true;
  }
  