Delphi / Object Pascal · Database exception

dbExpress DriverInitFailed Error

What does dbExpress DriverInitFailed Error mean in Delphi / Object Pascal?

Returned when the dbExpress client driver can't be properly initialized - the vendor client library is missing, installed incorrectly, or a version mismatch exists between the dbExpress driver and the native client library it wraps.

dbExpress DriverInitFailed ErrorDelphi (VCL) · Delphi (FireMonkey) · Delphi (dbExpress)

Condition

Returned when the dbExpress client driver can't be properly initialized - the vendor client library is missing, installed incorrectly, or a version mismatch exists between the dbExpress driver and the native client library it wraps.

Fix

Confirm the vendor's native client library, such as OCI for Oracle or the MySQL client DLL, is installed and on the system PATH and matches the version the dbExpress driver expects; reinstalling the client library resolves most of these.

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