Added QMysql plugin to Qt Creator project on MacOS Ventura 13.4

[SGaist]

@BushyAxis793 check the file type and architecture of the plugin you created. There's something wrong with it.

[BushyAxis793]

@SGaist OK. I decided to delete and build plugin one more time and I still got no errors but I noticed few warnings:

ld: warning: dylib (/usr/local/mysql/lib/libmysqlclient.dylib) was built for newer macOS version (12.0) than being linked (11.0)
ld: warning: linking against a dylib which is not safe for use in application extensions: /usr/local/mysql/lib/libmysqlclient.dylib

The file type of my libmysqlclient.dylib seems be ok and the architecture is universal (x86 + amr64) via lipo.

[SGaist]

What about libqsqlmysql.dylib ?

[BushyAxis793]

@SGaist I checked libqsqlmysql.dylib architecture:

mikolajnawrocki@MacBook-Pro-Mikoaj ~ % lipo -info /Users/mikolajnawrocki/Desktop/build-sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib
Non-fat file: /Users/mikolajnawrocki/Desktop/build-sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib is architecture: x86_64

[SGaist]

Looks like it still is single architecture.

[BushyAxis793]

@SGaist As I said before libmysqlclient.dylib is universal

mikolajnawrocki@MacBook-Pro-Mikoaj ~ % lipo -info /Users/mikolajnawrocki/Desktop/universal/libmysqlclient.dylib
Architectures in the fat file: /Users/mikolajnawrocki/Desktop/universal/libmysqlclient.dylib are: x86_64 arm64 

So the question is why libqsqlmysql.dylib is still x86?

in this command

/Users/mikolajnawrocki/Qt/6.5.0/macos/bin/qt-cmake /Users/mikolajnawrocki/Qt/6.5.0/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=/Users/mikolajnawrocki/Qt/6.5.0/macos -DMySQL_INCLUDE_DIR="/usr/local/mysql/include" -DMySQL_LIBRARY="/usr/local/mysql/lib/libmysqlclient.dylib"

libmysqlclient.dylib has correctly architecture

Maybe something with this warnings?

ld: warning: dylib (/usr/local/mysql/lib/libmysqlclient.dylib) was built for newer macOS version (12.0) than being linked (11.0)
ld: warning: linking against a dylib which is not safe for use in application extensions: /usr/local/mysql/lib/libmysqlclient.dylib

I think I am very close to fix my problem but still needs some help.

[hskoglund]

Hi, to be sure you build for the correct architecture, you can specify it on qt-cmake's command line, like this:

/Users/mikolajnawrocki/Qt/6.5.0/macos/bin/qt-cmake /Users/mikolajnawrocki/Qt/6.5.0/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=/Users/mikolajnawrocki/Qt/6.5.0/macos -DMySQL_INCLUDE_DIR="/usr/local/mysql/include" -DMySQL_LIBRARY="/usr/local/mysql/lib/libmysqlclient.dylib" -DCMAKE_OSX_ARCHITECTURES="arm64" .

[BushyAxis793]

@hskoglund Thanks for reply. I was follow your tip and the architecture is:

mikolajnawrocki@MacBook-Pro-Mikoaj ~ % lipo -info /Users/mikolajnawrocki/Desktop/build-sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib
Non-fat file: /Users/mikolajnawrocki/Desktop/build-sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib is architecture: x86_64

[hskoglund]

Hi, if you're running QT an M1 MacBook Pro then the architecture should be "arm64".

[BushyAxis793]

@hskoglund I know but my architecture is x86_64/arm64 so I need universal plugin. No idea how to install arm only version of QT.

[hskoglund]

Building wrih universal architecture is a good idea if you plan to distribute the .dylib to other Mac computers, but Oracle only allows a build for a single compurer anyway:

[BushyAxis793]

@hskoglund OK. So, can You tell me what is in you opinion best way to add qmysql plugin to qt creator?

[hskoglund]

If you do that qt-cmake command again with the architecture specified (same as I posted 7 hours ago):

/Users/mikolajnawrocki/Qt/6.5.0/macos/bin/qt-cmake ... -DCMAKE_OSX_ARCHITECTURES="arm64"

and then try the lipo command:

lipo -info /Users/mikolajnawrocki/Desktop/build-sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib

if it still says "x86_64" then try nuking the build directory :-)

[BushyAxis793]

@hskoglund Same result :(

I have no idea why I still got x86_64 architecture...

All I want is just add QMySQL plugin to my Qt Creator project nothing more.

[hskoglund]

The stackoverflow post you linked to 9 days ago, I looked at it now and it is a very good instruction how to build the MySQL plugin.
Pleas try it again and remember to erase all build directories and download a fresh copy of Qt”s sources every time you complie/build the plugin.

[BushyAxis793]

@hskoglund I did it but when I input

cmake --build .

I got:

[9/11] Linking CXX shared module plugins/sqldrivers/libqsqlmysql.dylib
FAILED: plugins/sqldrivers/libqsqlmysql.dylib 
: && /usr/bin/clang++ -g -DNDEBUG -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk -mmacosx-version-min=11.0 -bundle -Wl,-headerpad_max_install_names -Wl,-undefined,error -fapplication-extension -o plugins/sqldrivers/libqsqlmysql.dylib mysql/CMakeFiles/QMYSQLDriverPlugin.dir/QMYSQLDriverPlugin_autogen/mocs_compilation.cpp.o mysql/CMakeFiles/QMYSQLDriverPlugin.dir/main.cpp.o mysql/CMakeFiles/QMYSQLDriverPlugin.dir/qsql_mysql.cpp.o -F/Users/mikolajnawrocki/Qt/6.5.0/macos/lib -Wl,-rpath,/usr/local/mysql/lib -Wl,-rpath,/Users/mikolajnawrocki/Qt/6.5.0/macos/lib  /usr/local/mysql/lib/libmysqlclient.dylib  /Users/mikolajnawrocki/Qt/6.5.0/macos/lib/QtSql.framework/Versions/A/QtSql  /Users/mikolajnawrocki/Qt/6.5.0/macos/lib/QtCore.framework/Versions/A/QtCore  -framework IOKit  -framework DiskArbitration && cd /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/mysql && /opt/homebrew/Cellar/cmake/3.26.4/bin/cmake -E make_directory /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib.dSYM/Contents/Resources/DWARF && /opt/homebrew/Cellar/cmake/3.26.4/bin/cmake -E copy Info.dSYM.plist /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib.dSYM/Contents/Info.plist && /usr/bin/dsymutil /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib --flat -o /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib.dSYM/Contents/Resources/DWARF/qsqlmysql && /usr/bin/strip -S /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib && chmod -x /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/plugins/sqldrivers/libqsqlmysql.dylib.dSYM/Contents/Resources/DWARF/qsqlmysql
ld: warning: ignoring file /usr/local/mysql/lib/libmysqlclient.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64
Undefined symbols for architecture x86_64:
  "_mysql_affected_rows", referenced from:
      QMYSQLResult::reset(QString const&) in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
  "_mysql_character_set_name", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) (.cold.1) in qsql_mysql.cpp.o
  "_mysql_close", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
      QMYSQLDriver::close() in qsql_mysql.cpp.o
  "_mysql_data_seek", referenced from:
      QMYSQLResult::fetch(int) in qsql_mysql.cpp.o
  "_mysql_errno", referenced from:
      qMakeError(QString const&, QSqlError::ErrorType, QMYSQLDriverPrivate const*) in qsql_mysql.cpp.o
      QMYSQLResult::record() const in qsql_mysql.cpp.o
  "_mysql_error", referenced from:
      qMakeError(QString const&, QSqlError::ErrorType, QMYSQLDriverPrivate const*) in qsql_mysql.cpp.o
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) (.cold.1) in qsql_mysql.cpp.o
  "_mysql_fetch_field", referenced from:
      QMYSQLResultPrivate::bindInValues() in qsql_mysql.cpp.o
      QMYSQLResult::record() const in qsql_mysql.cpp.o
      QMYSQLDriver::record(QString const&) const in qsql_mysql.cpp.o
  "_mysql_fetch_field_direct", referenced from:
      QMYSQLResult::reset(QString const&) in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
  "_mysql_fetch_lengths", referenced from:
      QMYSQLResult::data(int) in qsql_mysql.cpp.o
  "_mysql_fetch_row", referenced from:
      QMYSQLResult::fetch(int) in qsql_mysql.cpp.o
      QMYSQLResult::fetchNext() in qsql_mysql.cpp.o
  "_mysql_field_count", referenced from:
      QMYSQLResult::reset(QString const&) in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
  "_mysql_field_seek", referenced from:
      QMYSQLResult::record() const in qsql_mysql.cpp.o
  "_mysql_free_result", referenced from:
      QMYSQLResult::cleanup() in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
      QMYSQLDriver::record(QString const&) const in qsql_mysql.cpp.o
  "_mysql_init", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_insert_id", referenced from:
      QMYSQLResult::lastInsertId() const in qsql_mysql.cpp.o
  "_mysql_list_fields", referenced from:
      QMYSQLDriver::record(QString const&) const in qsql_mysql.cpp.o
  "_mysql_next_result", referenced from:
      QMYSQLResult::cleanup() in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
  "_mysql_num_fields", referenced from:
      QMYSQLResultPrivate::bindInValues() in qsql_mysql.cpp.o
  "_mysql_num_rows", referenced from:
      QMYSQLResult::fetchLast() in qsql_mysql.cpp.o
      QMYSQLResult::size() in qsql_mysql.cpp.o
  "_mysql_options", referenced from:
      setOptionString(MYSQL*, mysql_option, QStringView) in qsql_mysql.cpp.o
      setOptionInt(MYSQL*, mysql_option, QStringView) in qsql_mysql.cpp.o
      setOptionBool(MYSQL*, mysql_option, QStringView) in qsql_mysql.cpp.o
  "_mysql_query", referenced from:
      QMYSQLDriver::beginTransaction() in qsql_mysql.cpp.o
      QMYSQLDriver::commitTransaction() in qsql_mysql.cpp.o
      QMYSQLDriver::rollbackTransaction() in qsql_mysql.cpp.o
  "_mysql_real_connect", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_real_escape_string", referenced from:
      QMYSQLDriver::formatValue(QSqlField const&, bool) const in qsql_mysql.cpp.o
  "_mysql_real_query", referenced from:
      QMYSQLResult::reset(QString const&) in qsql_mysql.cpp.o
  "_mysql_select_db", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_server_end", referenced from:
      QMYSQLDriver::~QMYSQLDriver() in qsql_mysql.cpp.o
      QMYSQLDriver::~QMYSQLDriver() in qsql_mysql.cpp.o
      QMYSQLDriver::~QMYSQLDriver() in qsql_mysql.cpp.o
  "_mysql_server_init", referenced from:
      QMYSQLDriver::QMYSQLDriver(QObject*) in qsql_mysql.cpp.o
      QMYSQLDriver::QMYSQLDriver(MYSQL*, QObject*) in qsql_mysql.cpp.o
  "_mysql_set_character_set", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_stmt_affected_rows", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_attr_set", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_bind_param", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_bind_result", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_close", referenced from:
      QMYSQLResult::cleanup() in qsql_mysql.cpp.o
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_stmt_data_seek", referenced from:
      QMYSQLResult::fetch(int) in qsql_mysql.cpp.o
  "_mysql_stmt_errno", referenced from:
      qMakeStmtError(QString const&, QSqlError::ErrorType, MYSQL_STMT*) in qsql_mysql.cpp.o
  "_mysql_stmt_error", referenced from:
      qMakeStmtError(QString const&, QSqlError::ErrorType, MYSQL_STMT*) in qsql_mysql.cpp.o
  "_mysql_stmt_execute", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_fetch", referenced from:
      QMYSQLResult::fetch(int) in qsql_mysql.cpp.o
      QMYSQLResult::fetchNext() in qsql_mysql.cpp.o
  "_mysql_stmt_free_result", referenced from:
      QMYSQLResult::detachFromResultSet() in qsql_mysql.cpp.o
  "_mysql_stmt_init", referenced from:
      QMYSQLResult::prepare(QString const&) in qsql_mysql.cpp.o
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_stmt_insert_id", referenced from:
      QMYSQLResult::lastInsertId() const in qsql_mysql.cpp.o
  "_mysql_stmt_num_rows", referenced from:
      QMYSQLResult::fetchLast() in qsql_mysql.cpp.o
      QMYSQLResult::size() in qsql_mysql.cpp.o
  "_mysql_stmt_param_count", referenced from:
      QMYSQLResult::prepare(QString const&) in qsql_mysql.cpp.o
      QMYSQLResult::exec() in qsql_mysql.cpp.o
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_stmt_prepare", referenced from:
      QMYSQLResult::prepare(QString const&) in qsql_mysql.cpp.o
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
  "_mysql_stmt_reset", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_stmt_result_metadata", referenced from:
      QMYSQLResultPrivate::bindInValues() in qsql_mysql.cpp.o
  "_mysql_stmt_store_result", referenced from:
      QMYSQLResult::exec() in qsql_mysql.cpp.o
  "_mysql_store_result", referenced from:
      QMYSQLResult::cleanup() in qsql_mysql.cpp.o
      QMYSQLResult::reset(QString const&) in qsql_mysql.cpp.o
      QMYSQLResult::nextResult() in qsql_mysql.cpp.o
  "_mysql_thread_end", referenced from:
      QMYSQLDriver::close() in qsql_mysql.cpp.o
  "_mysql_thread_init", referenced from:
      QMYSQLDriver::open(QString const&, QString const&, QString const&, QString const&, int, QString const&) in qsql_mysql.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
[10/11] Building C object sqlite/CMakeFiles/QSQLit...t/6.5.0/Src/qtbase/src/3rdparty/sqlite/sqlite3.c.o
ninja: build stopped: subcommand failed.

What now?

[hskoglund]

You got to step 7 ok in that post https://stackoverflow.com/questions/73908494/qmysql-driver-not-loaded-on-mac-os-for-mac-m1-m2-users/73908495 but in step 8 you forgot to type:
-DCMAKE_OSX_ARCHITECTURES="arm64"

Remember to erase the build folders and download a fresh copy of Qt's sources before building again :-)

[BushyAxis793]

@hskoglund Ok so I remove and Install again Sources and delete build_sqldriverrs folder to.

1. I installed ninja with homebrew

2. I go to

cd /Users/mikolajnawrocki/Qt/6.5.0/Src

3. I Input

./configure -sql-mysql -- -DCMAKE_INCLUDE_PATH="/usr/local/mysql/include" -DCMAKE_LIBRARY_PATH="/usr/local/mysql/lib"

4. Then I go to

 cd /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers

and Input

mikolajnawrocki@MacBook-Pro-Mikoaj sqldrivers % mkdir build_sqldrivers
mikolajnawrocki@MacBook-Pro-Mikoaj sqldrivers % cd build_sqldrivers

5. Next I Input

/Users/mikolajnawrocki/Qt/6.5.0/macos/bin/qt-cmake -G Ninja  /Users/mikolajnawrocki/Qt/6.5.0/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=/Users/mikolajnawrocki/Qt/6.5.0/macos -DMySQL_INCLUDE_DIR="/usr/local/mysql/include" -DMySQL_LIBRARY="/usr/local/mysql/lib/libmysqlclient.dylib" -DCMAKE_OSX_ARCHITECTURES="arm64"

6. Then I input

sed -i -e 's/-arch x86_64/-arch arm64/g' /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/build_sqldrivers/build.ninja

7. Next I input

cmake --build .

8. Then I input

cmake --install .

at the end I copy libqsqlmysql.dylib from build_sqldrivers to sqldrivers.

Everything seems be ok. But when I open my project I got below errors

13:02:57: Starting /Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/ATLAS...
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms" ...
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqoffscreen.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqoffscreen.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "archlevel": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("offscreen")
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqminimal.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqminimal.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "archlevel": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("minimal")
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqcocoa.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqcocoa.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "cocoa"
        ]
    },
    "archlevel": 0,
    "className": "QCocoaIntegrationPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("cocoa")
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/platforms" ...
qt.core.library: "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platforms/libqcocoa.dylib" loaded library
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/platformthemes" ...
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/platformthemes" ...
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/styles" ...
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/styles/libqmacstyle.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/styles/libqmacstyle.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QStyleFactoryInterface",
    "MetaData": {
        "Keys": [
            "macOS"
        ]
    },
    "archlevel": 0,
    "className": "QMacStylePlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("macos")
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/styles" ...
qt.core.library: "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/styles/libqmacstyle.dylib" loaded library
qt.qpa.fonts: Populating font family aliases took 54 ms. Replace uses of missing font family "Roboto" with one that exists to avoid this cost. 
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/networkaccess" ...
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/networkaccess" ...
qt.core.library: "resolv" loaded library
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers" ...
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlite.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlite.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QSQLITE"
        ]
    },
    "archlevel": 0,
    "className": "QSQLiteDriverPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QSQLITE")
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlmysql.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlmysql.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QMYSQL",
            "QMARIADB"
        ]
    },
    "archlevel": 0,
    "className": "QMYSQLDriverPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QMYSQL", "QMARIADB")
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlodbc.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlodbc.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QODBC"
        ]
    },
    "archlevel": 0,
    "className": "QODBCDriverPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QODBC")
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlpsql.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlpsql.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QPSQL"
        ]
    },
    "archlevel": 0,
    "className": "QPSQLDriverPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QPSQL")
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/sqldrivers" ...
qt.core.library: "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/sqldrivers/libqsqlmysql.dylib" loaded library
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/accessible" ...
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/accessible" ...
QJsonValue(double, 4.1903)
QJsonValue(double, 4.6332)
QJsonValue(double, 4.5148)
QJsonValue(double, 4.5148)
QJsonValue(double, 5.2543)
QSqlQuery::prepare: database not open
QSqlError("", "", "")
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/iconengines" ...
qt.core.plugin.factoryloader: looking at "/Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/iconengines/libqsvgicon.dylib"
qt.core.plugin.loader: Found metadata in lib /Users/mikolajnawrocki/Qt/6.5.0/macos/plugins/iconengines/libqsvgicon.dylib, metadata=
{
    "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz",
            "svg.gz"
        ]
    },
    "archlevel": 0,
    "className": "QSvgIconPlugin",
    "debug": false,
    "version": 394496
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("svg", "svgz", "svg.gz")
qt.core.plugin.factoryloader: checking directory path "/Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/iconengines" ...
qt.core.library: "resolv" unloaded library 
13:03:47: /Users/mikolajnawrocki/Documents/GitHub/build-ATLAS-Qt_6_5_0_for_macOS-Release/ATLAS crashed.

[hskoglund]

The crash occurs 50 seconds after you started your app so I'm guessing it is unrelated to loading the MySQL plugin.

So that means you've managed to build the MySQL pliugin, nice!

[BushyAxis793]

@hskoglund It seems I got QMySQL plugin added to Qt Creator!

Thanks a lot everyone! @Christian-Ehrlicher @hskoglund @SGaist

However now I have new problem. But I think I should create new topic for this. Anyway thank you very much and have a great day!