Compiler Error : use of undefined type ' '

[vinothrajendran4]

Hi Community,
I get the following compiler error
C2027: use of undefined type 'QMap <QString,QVariant>' from qvariant.h

Any idea what i have failed to add ?

Regards,
Vinoth R

[jsulm]

@vinothrajendran4 Did you include QMap?

#include <QMap>

You should show the code causing this error.

[SGaist]

Hi,

To add to @jsulm, did you add #include <QVariant> ?

[Crawl.W]

When I declare a func which ret type is QVariantList, report error error: C2027: use of undefined type 'QVariant'.In this case, we need include #include <QVariant> in the header file.