error↓

/home/runner/work/linglong/linglong/tools/qdbusxml2cpp/qdbusxml2cpp.cpp: In function ‘int main(int, char**)’:

/home/runner/work/linglong/linglong/tools/qdbusxml2cpp/qdbusxml2cpp.cpp:1131:5: error: ‘QDBusIntrospection’ is not a class, namespace, or enumeration

1131 | QDBusIntrospection::Interfaces interfaces = readInput();

solution by Qianwen↓

The error message you're getting suggests that the compiler cannot find the definition of the class QDBusIntrospection while trying to compile qdbusxml2cpp.cpp. This usually happens when the necessary header file isn't included or if the class has been removed or renamed in the version of Qt you are using.

QDBusIntrospection was indeed part of older versions of Qt for introspecting D-Bus interfaces, but it seems like it's either deprecated or no longer available in your current Qt version.

To resolve this issue:

1. Check Your Qt Version: Ensure you are using a version of Qt where QDBusIntrospection is still supported, or consult the Qt documentation for an alternative method in your current version.

2. Include the Correct Header: If it's still present, ensure you have included the appropriate header file for QDBusIntrospection, which would typically be something like:

   
   #include 
   
   

3. Update Code According to Qt Changes: If QDBusIntrospection has been removed or replaced in your Qt version, check the Qt migration guide or release notes to see what should be used instead.

4. Revisit Build Configuration: Verify that your build system is correctly configured to include the QtDBus module.

For example, in recent Qt versions, dbus interface descriptions are processed with qdbuscpp2xml and qdbusxml2cpp, but they might work differently than before, possibly without directly involving QDBusIntrospection.