I can't understand, what is the error here? Please anybody help me out


I can't understand what is the error over here. I have Initialized a global list and then i am trying to Initialize another random item from that list, but it is showing error as you can see in the image. I am new to MIT app inventor, help me.

Those values can only be calculated on demand at run time.

Replace the global inits with value procedures with the same name and call the value procedures as needed.

image

I just showed you how to deal with global inits.

But I suspect you need to rethink what it means for something to be random.

When i am trying to take another procedure block, it is showing an internal error

When i am trying to open the procedure drawer after taking out a Procedure block, it is showing an Internal Error

That's interesting. You can cancel the error dialog. Then, please export your project via the Projects menu and attach it here so I can take a look at it.

Math_Master .aia (188.8 KB)
Here is the .aia file for my project

No need to double post this error. I merged the topics.

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http://www.appinventor.org/bookChapters/chapter21.pdf

in case procedures are new to you

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I closed the Chrome, then re-opened it, and the problem solved.

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