Page 1 of 1
Cannot Find Class tFrxMyDACQuery and tFRXMYDacTable Xe2 32
Posted: Tue 27 Dec 2011 18:40
by Daniel Fagnan
Yesterday I migrated my application from XE to Xe2
Only PRoblem At de Design Time When I tryed to modifiy my report
I received this message
Cannot Find Class tFrxMyDACQuery and Cannot Find Class tFRXMYDacTable in Xe2 32 bit
At Runtime No problem
With Xe At runtime and design time no problem
Someone Has this problem

Posted: Wed 28 Dec 2011 15:41
by AndreyZ
Hello,
Earlier MyDAC versions don't have FastReport packages for RAD Studio XE2. The latest MyDAC version 7.1.4 has FastReport packages for RAD Studio XE2. To solve the problem, you should upgrade to MyDAC 7.1.4. After MyDAC installing, you should also install FastReport 4 MyDAC Components. You can learn how to install FastReport 4 MyDAC Components from the ReadMe.txt file that is located in the %MyDACDemos\ThirdParty\FastReport\FR4% directory. Please perform these steps and inform us about the results.
The same result with Xe2
Posted: Wed 28 Dec 2011 19:58
by Daniel Fagnan
I remove all Mydac VCl Xe and Xe2
I reinstall clean Mydac 7.1.4
I copy thidparty FastReports Fr4 directly to
c:\FR4
I compiled all package inside Fr4\delphi16
I Ad to libraty PAth in delphi option c:\Fr4
At runtime inside Delphi xe2
But when I design fastReport And I add tFrxMyDactTable
It's Correct I saw my data but when I save and Close FastREport Designer
I received an error the Class TFrxMyTable cannnot found.
After that all tfrxMyDacTable or tFrxMydacQuery has removed from report ?

Posted: Tue 03 Jan 2012 10:03
by AndreyZ
To solve the problem, you should drop the TfrxMYDACComponents component onto your form.
It's First thing then I done
Posted: Wed 04 Jan 2012 17:10
by Daniel Fagnan
In My Form I have TFrxMydacComponents
The problem is just in design mode
When I saved the reports all instance Of MyDacTable or MyDacQuery Has removed from the Fast report design form
If I add tMydacDatabaseName components only this components is not removed.
I followed the same install process for Delphi Xe with no problem
At desing and runtime , It's work normaly.
I used the same application for the test
Ok with Xe but Problem with Xe2 in design mode ??????

Posted: Thu 05 Jan 2012 11:25
by AndreyZ
Please try the following:
- remove FastReport 4 MyDAC components using the "Component->Install Packages" menu;
- close RAD Studio XE2;
- remove MyDAC;
- remove *dac*.bpl files from your computer;
- remove *.dcu files from your project;
- reinstall MyDAC;
- reinstall FastReport 4 MyDAC components.
If the problem persists after performing these steps, please specify the exact FastReport version you are using (for example, FastReport 4.12 Professional Edition).
I used Fastreport VCL Entreprise version 4.12 compiled 2011
Posted: Thu 05 Jan 2012 23:52
by Daniel Fagnan
- I remove FastReport 4 MyDAC components using the "Component->
Install Packages" menu;
- I close RAD Studio XE2;
- I remove MyDAC;
- I remove *dac*.bpl files from your computer;
- I remove *.dcu files from your project;
- I reinstall MyDAC;
- Ireinstall FastReport 4 MyDAC components.
I used Fastreport VCL Entreprise version 4.12 compiled 2011-11-1
I suspect that the problem is Fastreport because I read same type problem with version with fastreport embarcadero 4.12 ,
My version is XE2 Prof. Patch 3.
Someone used xe2 with fastreport other then embarcadero fastreport version.
Posted: Mon 09 Jan 2012 16:39
by AndreyZ
You are right, this is not MyDAC problem. This problem is caused by FastReport. For more information, please refer to:
http://www.fast-report.com/en/forum/lof ... t8520.html
https://forums.embarcadero.com/thread.j ... 8&tstart=0