Property PreprepareSQL does not exists

[una.bicicleta]

Whenever I open and run a delphi project with zConnection, I always get an error: "Error reading ZConnection1.PreprepareSQL: Property PrepepareSQL does not exist"
I can set the property to TRUE so my delphi project runs normal, but every time I close out and re-open, the property resets to False. How do I fix this bug?
I'm using Zeos componnent 7.0.4 and Delphi XE3 .

Thanks.

[EgonHugeist]

Not a Zeos issue.

Clean up all old dcu, dcp, bpl files. You're mixing old and newly compiled dcu's in compiling and linking the project.

[una.bicicleta]

Thanks, I'll try again later.