我尝试测试连接时遇到此错误

Could not connect to Source DBMS [IM002][Microsoft][ODBC Driver
Manager] Data soure name not found and no default driver specified
(0)(sqlDriverConnect)

ODBC连接字符串

Driver=psqlodc;SERVER=127.0.0.1;PORT=5432;DATA...

有谁知道如何纠正这个错误？