.yail file missing

[Hammad bin Saif]

 when I extract files from .aia I do not get the .yail file. And if I modify the other two files to change the name of the screens and then try to compile the updated project I get a compie error.

kindly help

[Taifun]

try again using a correct screen name

yail files are not necessary anymore

see the following tips and in your case especially #4

1. switch screens correctly 
   The recommended method of switching screens in App Inventor
   
   
follow these recommendations Using Images with App Inventor



2. avoid redundancy

   probably it helps to read chapter 19 - 21 in Dave's book http://www.appinventor.org/book2 to get an idea how to do DRY programming with App Inventor https://en.wikipedia.org/wiki/Don%27t_repeat_yourself
   
   

3. reuse your components, see also Building apps with many screens and https://groups.google.com/forum/#!msg/mitappinventortest/YBAfURWv-tY/Ivqx6XcmDgAJ
   
   
4. How to overcome the App Inventor project limit of 10 MB
   
   
5. Backup your project frequently, see also http://twodogapps.com/?page_id=686#BackupWork

Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by  Taifun.