What is this error & how fix it? reading ‘indexOf’

[gokul1 (gokul)]

error generating Yail for screen 4696413231382528_Screen1: : Cannot read properties of undefined (reading ‘indexOf’). Please fix and try packaging again.

what is this error & how fix it ?

[dora_paz (Dora)]

Welcome to the community. Could you provide more info? Components used in Screen1, extensions …?

[Still-learning (1-2-3-4...)]

I hope you have left blank some of the index field to empty in screen1, may be i am wrong. But post your screenshots for better understanding rather than adding words

[gokul1 (gokul)]

What is the index field ?

[Still-learning (1-2-3-4...)]

@gokul1

index field ?

Unless you show your blocks, it is hard to say about it.

[gokul1 (gokul)]

[gokul1 (gokul)]

No only two page

[dora_paz (Dora)]

post your aia here

[gokul1 (gokul)]

Blood_Camp.aia (55.6 KB)

[Anu10 (Anu)]

Check this one

Blood_Camp2.aia (55.7 KB)

[gokul1 (gokul)]

thank you
What is the reason for that error ?

[dora_paz (Dora)]

Missing values in project.properties. See the difference below.

[gokul1 (gokul)]

How can I upload an excel data to this app ?

[dora_paz (Dora)]

Please do not go #off-topic . If problem solved for this specific error please mark solution and open a new topic regarding excel data.