Apk file creation error

Good evening,

My name is Alejandro and I am a technology teacher at an institute in Vigo (Spain). Last year I started a project with my students and I'm having some troubles creating the .apk file. I am attaching photos in case you could give me a hand.

Thank you very much in advance.

Is this a large project? How many screens and blocks? Did you upload a lot of assets?
To get sone statistics about the project, you can use https://unchive.kodular io
Just provide the overview of the statistics here
What happens if you try to build later?


Post the aia.

Hello Jandro

Here is a check list that may help you:
ProfessorCad: Tips & Tricks Cannot Build/Install/Run APK


Here is the aia file.



The .aia file weighs 49.6 MB. The project has 45 windows (I realized later that I could have done it differently). It does have a multitude of assets (approximately one image, one audio and one text per window). There are few blocks per window.

Your aia:


Try tp use http://code.appinventor.mit.edu/.

Two options:

  1. Download MP3 audio files at the first run.
  2. How to build a big app → APK max. 100 MB or → AAB 150 MB

How to do this see for example here