single op add check json file

ge/offline/single_op_parser.cc

@@ -363,12 +363,12 @@ Status ValidateSingleOpJson() {
   for (const auto &r : GetJsonTensorVerifyResult()) {
     if (!r.is_format_valid) {
       string err_str = "json tensor format invalid.Tensor name is [" + r.tensor_name + "], format is " + r.format;
-      GE_ERRORLOG_AND_ERRORMSG(PARAM_INVALID, err_str);
+      GE_ERRORLOG_AND_ERRORMSG(PARAM_INVALID, err_str.c_str());
       return PARAM_INVALID;
     }
     if (!r.is_dtyep_valid) {
       string err_str = "json tensor datatype invalid.Tensor name is [" + r.tensor_name + "], datatype is " + r.dtype;
-      GE_ERRORLOG_AND_ERRORMSG(PARAM_INVALID, err_str);
+      GE_ERRORLOG_AND_ERRORMSG(PARAM_INVALID, err_str.c_str());
       return PARAM_INVALID;
     }
   }