What do I have to include in my release Qt gui package to run the sqlite db?

Question

The debug version of my project runs perfectly and the release version also runs except for the sqlite code. I get the following error messages: "QSqlDatabase: QSQLITE driver not loaded. QSqlDatabase: available drivers: QSqlDatabase: an instance of QCoreApplication is required for loading driver plugins." This happens only when I try to open the db.

In my code I am not not connecting to a db on disk or as a resource file. I simply want an open and empty sqlite database in which I will build tables and populate them programmatically. So my db is the default and nameless db which sqlite creates if you don't provide a name. I have included qsqlite.dll, sqlite.dll, Qt6Core.dll, Qt6Sql.dll, sqlite3.dll, sqlite3.def but all to no avail. I have inserted them into the same directory ("release") as the executable and also in an "sqldrivers" subdirectory. No change occurred.

Charlie · Accepted Answer · 2023-12-08 05:37:49Z

0

The required plugins can be found in Qt(root)\version\compiler_name\plugins. So in my case the location is: C:\Users\Owner\Development\Qt\6.5.2\mingw_64\plugins\dir where "dir" can be "sqldrivers", "styles", "platforms" ...etc. Directory structures (in "release") must be preserved.

answered Dec 8, 2023 at 5:37

Charlie

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