Copied App Brings White Screen After Installation and Runtime Error in Emulator

Hello,
I copied my Kanzleischrift-Trainer App (it is an old German font from the past) from the Fraktur-Trainer App, because it is nearly the same content, only the font and the stories are changing.

The problem is, that everythings inside works fine, but after installation on Tabwee Android Tablet I only see a white screen and nothing happens. I tried the app in the Emulator, but this shows a runtime error (pls. see below). I would be happy, if I could get this app running, because it would be a lot of work, to build the app from the scratch. Could someone please help? Thank you very much.
Best,
Martina


Kanzleischrift_Trainer.aia (3,1 MB)

Hello, I updated the app and changed some thing, but still is the issue. Because of the changes, I upload from the relevant screens the block images and I upload a new AIA file. The problem is still, that the screen after installation on the device Android shows only a white screen without an error message. I tested, if the font is the reason for the problem, but with the font is everything alright, lilke it seems. In the runtime error, I saw a critical point with an arrangement, but I have no idea on which screen and what happened. Could someone please help? Thanks!
Best,
Martina








Kanzleischrift_Trainer.aia (1,9 MB)

I'm seeing this error on most screens in the Companion 2.76u:

To work around it, I had to go through the Designer and change FontTypeFace to something other than default.
image

I can't explain this.

Regarding your big java error, make sure your Companion is up to date (2.76u).

Examining the .scm files with NotePad++ and looking for FontTypeface, I see


in this section, the third occurrence of FontTypeface has value "default" instead of "2".

But I am not sure which is correct yet.

I will go with the number 2, since that comes closest to the range of pre-defined font options before typeface files were implemented. (You said this was an old project file.)

It would be straightforward to run through the .aia file with 7zip and Notepad++, doing mass changes of "FontTypeface":"default" to "FontTypeface":"2"

I went through the aia with 7zip and Notepad++, replacing all occurrences of "FontTypeface:"default" with "FontTypefaces":"2" in all the .scm files.

Kanzleischrift_Trainer.aia (1.9 MB)

I was able to switch among all the screens in the Companion, with no errors.

I built the app on the code server and tested the .apk on my BlueStacks emulator.
It ran without errors or white screens.

What Android level is your tablet?
Maybe it's too old?

Dear ABG, Thank you so much. My Android tablet Tabwee has the Android version 15. will have a look at my companion version tomorrow morning. Now we have 10 pm in Germany. Thank you.
Best,
Martina