问题
I have a little different question from Delphi XE5 FireDAC Error: Cannot load vendor library libmysql.dll or libmysqld.dll
I'm evaluating Delphi XE6 on Windows 7 64bit, I wish to use FireDAC to connect to MySQL database.
I have downloaded libmysql.dll and install the file in C:\Windows\SYSTEM32\.
After trying to set TFDConnection.Active to true during designed time, I got error dialog as displayed below.
So I tried to use TFDPyhsMySQLDriverLink, I have set TFDPyhsMySQLLink.VendorLib to C:\Windows\System32\libmysql.dll, and set TFDConnection.DriverName to point to TFDPyhsMySQLLink.DriverID instead, but I got error dialog as displayed below.
I have tried to place libmysql.dll at C:\Windows\System32\bin but the error dialog still the same as displayed above.
Please guide me what to do to fix this problem.
回答1:
With carefully reading this comment and this comment
There are a few facts to fix the problem.
- Delphi IDE is a 32 bit application so I need libmysql.dll (32 bit version) instead of 64 bit version.
- libmysql.dll version not depending on the MySQL server itself as I used to misunderstood
- C:\Windows\SysWOW64 is equivalent to C:\Windows\System32 but it's the place to store system dll for the 32 bit Application (like Delphi)
So I've placed the libmysql.dll (32 bit version) at C:\Windows\SysWOW64, finally the problem is fixed.
回答2:
xampp
C:\xampp\mysql\lib\libmysql.dll
C:\xampp\mysql\lib\libmysqld.dll
COPY TO
C:\Program Files (x86)\Embarcadero\RAD Studio\XX.X\bin
来源：https://stackoverflow.com/questions/23940204/delphi-xe6-on-windows-7-64bit-firedac-cannot-find-libmysql-dll