### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [April 9, 2026, 3:37pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/2 "2026-04-09T15:37:18Z")
> [@henrique](#):
>
> Cannot find type “Delphi.FMX.Controls.{System.Generics.Collections}TList\” from library “” referenced by “Delphi.fmx”
Curious. Can i see the project, or a testcase that shows this?
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### Author:  [@henrique](https://talk.remobjects.com/u/henrique)
#### Post date: [April 9, 2026, 5:00pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/3 "2026-04-09T17:00:24Z")
I’m using the demo repository from Embarcadero: [GitHub - Embarcadero/RADStudio13Demos: Delphi and C++Builder Demos for Embarcadero RAD Studio version 13 · GitHub](https://github.com/Embarcadero/RADStudio13Demos.git)
Inside the repository in the path “Object Pascal\Multi-Device Samples\User Interface\ControlsDesktop” I open the project an try to compile.
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [April 9, 2026, 5:30pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/4 "2026-04-09T17:30:57Z")
> [@henrique](#):
>
> I’m using the demo repository from Embarcadero: [GitHub - Embarcadero/RADStudio13Demos: Delphi and C++Builder Demos for Embarcadero RAD Studio version 13 · GitHub](https://github.com/Embarcadero/RADStudio13Demos.git)
>
> Inside the repository in the path “Object Pascal\Multi-Device Samples\User Interface\ControlsDesktop” I open the project an try to compile.
thanx! i imported this myself, and after some tweaks to the project (and some improvements i just made to the importer, related to those tweaks), i donm;t see the above error, i only see what boils down to three errors that I cannot explain right now (will log a ticket to investigate), and one missing .res file (which really isn’t there)…
I’m attaching my project, for reference:
[ControlsDemo.elements](https://talk.remobjects.com/uploads/short-url/q77cfGBgPrLSdLIdAiXlmnVhcJ9.elements) (3.0 KB)
The errors i see are:
```auto
Windows: ctrlsdemofrm.pas, line 24 — (E26) Unknown namespace "System.Rtti" in uses list
Windows: ctrlsdemofrm.pas, line 430 — (E62) Type mismatch, cannot assign "Int32" to "-20 .. 20"
macOS: ctrlsdemofrm.pas, line 369 — (E400) No overloaded constructor with 1 parameter for type "TTask"
macOS: ControlsDemo.dpr, line 20 — Resource file 'C:\Users\Public\Documents\Embarcadero\Studio\37.0\Samples\Object Pascal\Multi-Device Samples\User Interface\ControlsDesktop\ControlsDemo.res' does not exist
```
(the E62 and E400 repeat a few times).
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### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [April 9, 2026, 5:32pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/5 "2026-04-09T17:32:34Z")
Logged as [bugs://E27624](https://www.remobjects.com/portal/bugs/?id=E27624): Delphi Compatibility: cannot pass integer literal to range parameter
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### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [April 9, 2026, 5:37pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/6 "2026-04-09T17:37:12Z")
Logged as [bugs://E27625](https://www.remobjects.com/portal/bugs/?id=E27625): Island/Delphi: cannot create TTask with closure (“no such constructor”)
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [April 9, 2026, 5:43pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/7 "2026-04-09T17:43:11Z")
(The System.Rtti issue was ecaise i was building for Windows/arm64; seems thats not supported there). Windows/arm64 support isn’t really functional yet.
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### Author:  [@henrique](https://talk.remobjects.com/u/henrique)
#### Post date: [April 9, 2026, 5:50pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/8 "2026-04-09T17:50:32Z")
How I compile the Win32 version of this project?
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [April 9, 2026, 7:40pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/9 "2026-04-09T19:40:00Z")
> [@henrique](#):
>
> How I compile the Win32 version of this project?
It should automatically pick the best architecture for your system. But if you’re on an Wndows/arm64, you can force it to x86\_64 or i386 in the dropdown box at the top right:
or by changing the architecture(s) in the project settings:
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [May 18, 2026, 12:51pm UTC](https://talk.remobjects.com/t/error-compiling-fmx-demo/33193/10 "2026-05-18T12:51:49Z")
[bugs://E27624](https://www.remobjects.com/portal/bugs/?id=E27624) was closed as fixed.