Installed in D7 but cannot build ZSimple

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I would like to use ZeosLib to connect a Delphi 7 application to PostgreSQL.

I was able to follow the installation guide and get Zeos installed in Delphi 7.
I edited the library path to include the "build" folder of ZeosLib.

However, when I open and try to compile ZSimple project, I get the error "Field frmMain.ZQueryZ does not have a corresponding component. Remove the declaration?"

What did I miss in the installation?