Bad arguments to - The operation cannot accept the arguments

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#1

bad arguments to - The operation cannot accept the arguments My app is a bus tracking app. When downloading the app, it comes up with a message like this. what should i do

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#2

Which operation and which arguments?
The most important paet of the error message you forgot to tell us…

Taifun

#3

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Sorry, it’s like this in the app.

#4

In your blocks there is only one - operation…

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What is the purpose of that calculation?
The first argument is the system tine
It looks like the second argument is a list having the 2 items 967 and 733

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use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing and Debugging
Taifun