error no match for ‘operator’ operand types are ‘QJsonValue’ and ‘const char 5’ 182 infoName = objNametoString; ^

This error occurs because the QJsonValue class does not have an overloaded operator[] that takes a const char array as an argument. Instead, you need to use the QJsonObject class to access the values of a JSON object.

You can modify your code to use QJsonObject as follows:

QJsonObject obj = json.array()[i].toObject();
info.Name = obj["Name"].toString();

Here, we first convert the QJsonValue to a QJsonObject using the toObject() method, and then access the value of the "Name" key using the [] operator