Delphi 10.3 通过 FireDAC 访问MySQL时报错：
[FireDAC][Phys][MySQL]-314. Cannot load vendor library [libmysql.dll or libmysqld.dll]. 系统找不到指定的文件。
Hint: check it is in the PATH or application EXE directories, and has x86 bitness.
Failed to load DBMS client !
解决方案：
1、下载 libmysql.dll
2、复制 libmysql.dll 到 RAD 的安装目录的bin文件夹下，如：D:\delphi\RAD\bin
32位的拷贝到D:\delphi\RAD\bin，64位的拷贝到D:\delphi\RAD\bin64