Error after importing project from App Inventor

Feedback Bugs
#1

Hello Makeroid Community,
I just imported my project from App Inventor to Makeroid getting help from this tutorial (to change package name so I can publish it again as the same app.):
https://community.makeroid.io/t/how-to-use-the-special-package-names/296

When I try to create an .apk, I get the error below as a yellow warning bubble at the top.

Error generating Yail for screen 4554960926670848_Screen1: : Cannot read property ‘type’ of null. Please fix and try packaging again.

What does this mean and what can I do to make this error disappear?

#2

Can you show the blocks and the components?

#3

Here are the blocks (all of them):

makeroidsupportblockss
makeroidsupportblockss1325×681 102 KB

Here is the app interface:

interfacess
interfacess332×615 62.5 KB

Here are the invisible components:

nonvisiblecss

Here are all of the Properties:

props1
props1211×581 18.7 KB
props2
props2201×533 15.4 KB
props3
props3176×529 15.2 KB

Hope you can resolve the problem :slight_smile:

#4

I think I know the issue:

Can I see all the properties for all textboxes?

#5

There are a total of 2 text boxes.

Here are the properties of the 1st one:

textboxprop1
textboxprop1.png225×761 21.6 KB
textboxprop2

and here are the properties of the 2nd one:

2textboxprop1
2textboxprop1.png220×764 21.3 KB
2textboxprop2
2textboxprop2.png205×519 13 KB

#6

Humm, can I take a look to the .AIA?

#7

Do you want me to export the .aia file from Makeroid (after transfer) or from App Inventor (original: before transfer)?

#8

Makeroid one

#9

ai_Randomer.aia (491.7 KB)

Here you go :slight_smile:

#10

@Diego have you found a solution?

#11

Not yet :sweat:

I have lots of exams, so until the 27th I won’t have much time…

#12

Oh, OK. I will be waiting always.
(Good Luck with the Exams :slight_smile:.)

#13

@TurboProgramming, just a suggestion: Try to delete the components, one by one, and after delete it, try to generate the apk, until discover the error. This error can be related to a property from a component that internally was migrated with null.

2 Likes
#14

great idea, but it will be soo hard to do it :frowning:.
But I could start the project from the beginning, that would be easier :slight_smile: (As it’s a small app.)

Thanks for the suggestion @Kleyber_Derick :slight_smile:

1 Like
#15

You can replicate a project by choosing

File > Save Project As
#16

by that what do you mean? @pavi2410

#17

I had the same problem and it was solved by unchecking the option “NumbersOnly” in the TextBox components in AppInventor before exporting the AIA file, as suggested here (https://community.makeroid.io/t/error-while-compiling-to-apk/431), try that!

1 Like
#18

I will try, if it works I will let you know!

By the way thanks for the tip! :wink:

#19

If this is the error I will take a look at how why this is happening. I think its because we didn’t remove that property the right way.

#20

We have done it wrong :smiley:
I make current some tests on it.

I have changed something in our code and importet a project form AI with a textbox where the numbers only block is enabled.

Then I have importet the project into our builder.
The apk works now. No crash. No error.
I make more tests on it.

1 Like