A problem on MySQL driver installation.

foxyz

Hi,
I'm trying to install a plugin MySQL driver on my laptop, It's compiled successfully, but does't work.
I have already built the release and debug library files and put them in the correct directory. next is the details:
platform: Qt4.8.4,win7-x86-64bit, MySQL-5.1.68 C_API and header files.VS2010
Four files in folder D:\Qt\4.8.4\plugins\sqldrivers

qsqlmysql4.dll qsqlmysql4.lib qsqlmysqld4.dll qsqlmysqld4.lib
But it QSqlDatabase::drivers() is still no "QMYSQL" exist.

any clues? thanks!

mcosta

Hi,

are you sure the PATH where plugins are located is correct?
Try to print Default Location for Database Plugins
@
QString pluginsPath = QLibraryInfo::location (QLibraryInfo::PluginsPath);
qDebug (qPrintable(pluginsPath));
@

foxyz

Thank you!,I got this :QLibraryInfo::location (QLibraryInfo::PluginsPath) = "D:\Qt\4.8.4\plugins"
This location is correct. Also I add it to PATH. Someone said a file libmysql.dll should be copied to
system directory. But my mysql installation doesn't contain this file,( only a file libmysql.lib exists in path of /MySQL51/lib/opt)

mcosta

[quote author="foxyz" date="1367886370"]Thank you!,I got this :QLibraryInfo::location (QLibraryInfo::PluginsPath) = "D:\Qt\4.8.4\plugins"
This location is correct. Also I add it to PATH. Someone said a file libmysql.dll should be copied to
system directory. But my mysql installation doesn't contain this file,( only a file libmysql.lib exists in path of /MySQL51/lib/opt)[/quote]

Hi,
what you saying means MySQL client was only statically linked. Are you sure your installation was successfully performed?

foxyz

Another choice, I built it successfully on linux virtual machine ,and now it works well!

Thank you mcosta!! Anyway, Maybe I should say bye-bye to my windows OS.....