my project used to 3.1.2 and I just got update to 4.1.0 [DCC Error] iemio.pas(2063): E2003 Undeclared identifier: 'btnApply' every sample project which is attached in 4.1.0 are same problem. what should I do?
btnApply is defined in iopreviews.pas (and iopreviews.dfm) unit. Please make sure there isn't a custom version of this form in your path. Also, please let me know your Delphi version.