QJsonObject returns "not accessible" when the item type is string

in this code the qjsonobject works perfectely except when item value is string.

lets suppose that we hae an external file called test.json.

 

 test.json:

 

{
"foo":

{ "item1": 4999, ",tem2": "489sss651584", "item3": true, "item4":[ "tab0", "tab1", "tab2" ] }

}

 

 
QString val;
QFile file;
file.setFileName("test.json");
file.open(QIODevice::ReadOnly | QIODevice::Text);
val = file.readAll();
file.close();
QJsonDocument d = QJsonDocument::fromJson(val.toUtf8());
QJsonObject sett2 = d.object();
QJsonValue functions = sett2.value(QString("foo"));
QJsonObject item = functions.toObject();
QJsonValue item1 = item["item1"];
QJsonValue item2 = item["item2"];
QJsonValue item3 = item["item3"];
QJsonArray item4 = item["irwm4"].toArray();

///// output:
item1 = integer = 4999
item2 = not accessible
item3 = bool = true
item4 = array = [....]