Linker Error for TouchGFX framework part after Migration to 4.20.0.

[GS1]

Hello TouchGFX team,

I migrated my project from 4.18.1 to 4.20.0., added some dynamic graphics handling and now I get a linker error when building the project:

xProML_TFT\xProML_TFT.axf: Error: L6218E: Undefined symbol touchgfx::paint::rgb888::lineFromColor(unsigned char*, unsigned, unsigned, unsigned char) (referred from painterrgb888.o).

xProML_TFT\xProML_TFT.axf: Error: L6218E: Undefined symbol touchgfx::paint::rgb888::tearDown() (referred from painterrgb888.o).

Not enough information to list image symbols.

Not enough information to list load addresses in the image map.

Finished: 2 information, 0 warning and 2 error messages.

"xProML_TFT\xProML_TFT.axf" - 2 Error(s), 0 Warning(s).

I tracked the file painterrgb888.cpp and see a big difference between the version from 4.18.1 and 4.20.0.

As this is a part of the framework (widget / canvas), I don't dare to copy the file from the old version to version 4.20.0.

How can I fix this??? What is wrong ?

Any help is very much appreciated. My customer (Aston Martin Lagonda!) is waiting for the firmware update!

BR GS

[MM..1]

Primary Clean project after upgrade , and some functions between version changes or is removed.

You need correct your custom code.

[redmig]

Did you try to regenerate the code after the update? (but remeber to do a backup first!)

[egoltzman · Accepted solution]

Try to read this - https://support.touchgfx.com/4.20/docs/miscellaneous/known-issues

I had some issues after I regenerate the project so I follow the instructions at the end of this section:

If you for some reason cannot regenerate code in CubeMX, you can manually add the missing functions by inserting the following includes in a .cpp file in your application:
 
#include <touchgfx/hal/Paint.hpp>
#include <touchgfx/hal/PaintRGB565Impl.hpp> // 16bpp painting routines
#include <touchgfx/hal/PaintRGB888Impl.hpp> // 24bpp painting routines

[GS1]

I generated code with TouchGFX, yes.

But due to the fact that the project is originally was created before TouchGFX was included by ST (2017), I can not use the Cube Generate Code version. The project structure is totally different. Was a tedious job to include the TouchGFX part into the remaining application and get all components working together. Up to Version 4.20.0. everything was working perfectly with updates.

[GS1]

Thank you egoltzman,

this might help and I will try that immediately...

Concerning regenerate with CubeMX:

Due to the fact that the project originally was created before TouchGFX was included by ST (project from 2017), I can not use the Cube Generate Code version. The project structure is totally different. Was a tedious job to include the TouchGFX part into the remaining application and get all components working together. Up to Version 4.20.0. everything was working perfectly with updates.

[GS1]

Success! Thank you for your help! it worked!

I was not seeing the "known issues" comment... I only was looking into the change history. Next time I will have a closer look to the known issue part too.

BR GS