Hi everyone, I am trying to create a app for GPA calculation?

MIT App Inventor Help
1

here are my code, but it just kept popping up bugs, can anyone help me?

截屏2025-10-28 13.06.32
截屏2025-10-28 13.06.321920×1046 97.2 KB

截屏2025-10-28 13.06.25
截屏2025-10-28 13.06.251920×1046 183 KB

截屏2025-10-28 13.06.17
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here were some of the requirements:
微信图片_20251028130711_23
微信图片_20251028130711_231706×1279 426 KB

ps: this is my problem that kept popping up:
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截屏2025-10-28 13.07.431920×1046 67.6 KB

2

The textbox value is in the .Text part

Also see