C:\Qt\Qt5.10.0\5.10.0\mingw53_32\include\QtCore\qh ashfunctions.h:112: error: no matching function for call to 'qHash(const PB:honebook&)'
Q_DECL_NOEXCEPT_EXPR(noexcept(qHash(t)))
^
can someone please assist me with solution to the above error I have attached files of my project
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