Alert:
Error from Companion: Attempt to invoke virtual method ‘int com.google.appinventor.components.runtime.util.YailList.size()’ on a null object reference
I couldn’t find the issue
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That error implies you are trying to create a list out of nothing. Recheck your blocks. Check for spelling errors. Paste your blocks if you need more help.
Good Luck
Do you expect anyone to make sense of this? Your blocks are overlapping. Check your blocks for errors.
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sorry sir,
I have re-attached blocks. please kindly review this…
sometimes it shows like this:
Please Help