'DirSettings::recentDirs' uses undefined class 'std::array<QString,5>'

'DirSettings::recentDirs' uses undefined class 'std::array<QString,5>'

'begin': no matching overloaded function found

'end': no matching overloaded function found

'<begin>$L0': cannot be used before it is initialized

'<end>$L0': cannot be used before it is initialized

you cannot dereference an operand of type 'int'

'QAction::QAction': no overloaded function could convert all the argument types

'void MainWindow::openTable(const QString &)': cannot convert argument 1 from 'const int' to 'const QString &'

'DirSettings::recentDirs' uses undefined class 'std::array<QString,5>'

'stdext::checked_array_iterator<const T *>': warning STL4043: stdext::checked_array_iterator, stdext::unchecked_array_iterator, and related factory functions are non-Standard extensions and will be removed in the future. std::span (since C++20) and gsl::span can be used instead. You can define _SILENCE_STDEXT_ARR_ITERS_DEPRECATION_WARNING or _SILENCE_ALL_MS_EXT_DEPRECATION_WARNINGS to suppress this warning.

with

[

T=QVector<QVariant>

]

'stdext::checked_array_iterator<const T *>': warning STL4043: stdext::checked_array_iterator, stdext::unchecked_array_iterator, and related factory functions are non-Standard extensions and will be removed in the future. std::span (since C++20) and gsl::span can be used instead. You can define _SILENCE_STDEXT_ARR_ITERS_DEPRECATION_WARNING or _SILENCE_ALL_MS_EXT_DEPRECATION_WARNINGS to suppress this warning.

with

[

T=QVector<QVariant>