App error: The operation select list item cannot accept the arguments: , [1], [0]

[Frederick_Rogers_Jr]

I am following the tutorial from the official guide of the "Tour Guide" app. I get this error on the Gallery screen. I can't seem to find a solution that fits my situation. I am still learning and appreciate any guidance. Thank you in advance. I have included image of code block section.

[Ramon]

Hello,

maybe you need to change that by "set currentIndex=1" instead of photoList?

[TIMAI2]

If these blocks are all on the same screen, then this will fail with that error when the app is first run.

[Frederick_Rogers_Jr]

I'll try that. I'm following the tutorial from the official book so everything has been fine up to this point.

[Frederick_Rogers_Jr]

This is only on the Gallery block screen.

[TIMAI2]

From the complete aia for the tour guide:

[Frederick_Rogers_Jr]

Thanks to you both. It is currently working correctly. I'll study this so I understand why.

[Frederick_Rogers_Jr]

I see it now helps to read carefully.

[Ramon]

yes...that is the index used to select the Image from the photoList list. It must be >0 in AI2.

[Frederick_Rogers_Jr]

So another issue once again unable to find a useful solution. I am trying to use a Delete button to give users the ability to choose which pictures to remove from app that are not wanted. Can I get directed to a example that will make this happen? Thank you in advance. Code block included.

[Ramon]

Hello,

if you place a button to delete the photo you are showing, you already have the index so it is easy to remove it from the photos list: