= FAQ ^([#fnfaq 1])^ -- common compilation errors =

== MSVC ==

=== ```ComponentBase``` should be inherited AFTER ```QObject``` ===
==== Error message ====
{{{
>moc_Component.cpp(63): error C2039: 'staticMetaObject' : is not a member of 'pacpus::ComponentBase'
>          ComponentBase.h(60) : see declaration of 'pacpus::ComponentBase'
>moc_Component.cpp(80): error C2039: 'qt_metacast' : is not a member of 'pacpus::ComponentBase'
>          ComponentBase.h(60) : see declaration of 'pacpus::ComponentBase'
>moc_Component.cpp(85): error C2039: 'qt_metacall' : is not a member of 'pacpus::ComponentBase'
>          ComponentBase.h(60) : see declaration of 'pacpus::ComponentBase'
}}}

==== Solution ====

Your class declaration should look like:
{{{
class Component
    : QObject
    , ComponentBase
{
};
}}}

=== Class inheriting from ```QObject``` should be ```moc```-ed ===
==== Error message ====

{{{
>Component.obj : error LNK2001: unresolved external symbol "public: static struct QMetaObject const pacpus::Component::staticMetaObject" (?staticMetaObject@Component@pacpus@@2UQMetaObject@@B)
>Component.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall pacpus::Component::metaObject(void)const " (?metaObject@Component@pacpus@@UBEPBUQMetaObject@@XZ)
>Component.obj : error LNK2001: unresolved external symbol "public: virtual void * __thiscall pacpus::Component::qt_metacast(char const *)" (?qt_metacast@Component@pacpus@@UAEPAXPBD@Z)
>Component.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall pacpus::Component::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall@Component@pacpus@@UAEHW4Call@QMetaObject@@HPAPAX@Z)
}}}

==== Solution ====

* Check that you use ```moc``` tool on your class, i.e. file ```moc_Component.cpp``` is created and linked to the target.
1. Add ```Component.h``` to CMake variable ```MOC_FILES```.
2. Add ```${MOC_FILES}``` to the list of sources used by ```pacpus_add_library``` or ```pacpus_add_executable```.

== Varia ==

[=#fnfaq] FAQ -- Frequently Asked Questions