How to install qt 5.15 from qt 5.12?
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I have installed qt 5.12. I want use QTcpServer class but it is for qt 5.15 not 5.12. How to install qt 5.15 in windows? is there a installer?
@zabitqt said in How to install qt 5.15 from qt 5.12?:
I want use QTcpServer class but it is for qt 5.15 not 5.12.
QTcpServer is available since Qt4 ages so it's for sure also in Qt5.12
How to install qt 5.15 in windows?
The same way you installed 5.12
is there a installer?
Yes, the Qt online installer
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I have installed qt 5.12. I want use QTcpServer class but it is for qt 5.15 not 5.12. How to install qt 5.15 in windows? is there a installer?
@zabitqt said in How to install qt 5.15 from qt 5.12?:
is there a installer?
Yes, Qt online installer available from here: https://www.qt.io/download
But how did you actually install Qt 5.12? -
@Christian-Ehrlicher said in How to install qt 5.15 from qt 5.12?:
Qt online installer
Ok. Thank you so much. I get this error:
1>moc_QtVideoWidgetsIssueTrack.obj : error LNK2019: unresolved external symbol "public: void __cdecl QtVideoWidgetsIssueTrack::onfinish(void)" (?onfinish@QtVideoWidgetsIssueTrack@@QEAAXXZ) referenced in function "private: static void __cdecl QtVideoWidgetsIssueTrack::qt_static_metacall(class QObject *,enum QMetaObject::Call,int,void * *)" (?qt_static_metacall@QtVideoWidgetsIssueTrack@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z)
1>C:\Users\Administrator\source\repos\QtVideoWidgetsIssueTrack\x64\Debug\QtVideoWidgetsIssueTrack.exe : fatal error LNK1120: 3 unresolved externalsIt doesn't find library seems.
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@Christian-Ehrlicher said in How to install qt 5.15 from qt 5.12?:
Qt online installer
Ok. Thank you so much. I get this error:
1>moc_QtVideoWidgetsIssueTrack.obj : error LNK2019: unresolved external symbol "public: void __cdecl QtVideoWidgetsIssueTrack::onfinish(void)" (?onfinish@QtVideoWidgetsIssueTrack@@QEAAXXZ) referenced in function "private: static void __cdecl QtVideoWidgetsIssueTrack::qt_static_metacall(class QObject *,enum QMetaObject::Call,int,void * *)" (?qt_static_metacall@QtVideoWidgetsIssueTrack@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z)
1>C:\Users\Administrator\source\repos\QtVideoWidgetsIssueTrack\x64\Debug\QtVideoWidgetsIssueTrack.exe : fatal error LNK1120: 3 unresolved externalsIt doesn't find library seems.
@zabitqt said in How to install qt 5.15 from qt 5.12?:
I get this error:
Where? In the installer?
And as @Christian-Ehrlicher pointed out: QTcpServer is available in Qt 5.12
