App crash after open screen

can you fix it?

The solution found but the cause it’s Unknown

Why?

Your project contain more blocks to find the incorrect blocks, for now it will take more time for me to identify it.

Solution, Disable all blocks and Enable 1 by 1 it works then after doing this experiment you will run into a fix.

I apology i promised to fix but to how blocks are here, i recommend you to do it

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oh well, thanks for the help

I tested it and it works fine

RuntimeErrorAlert: alert(The operation * cannot accept the arguments: , [0], ["http://192.168.40.20/SUPPLY_HOSE/scan_out.php?full_qr="], Bad arguments to *, End Application

Screen S_GreenHosoe_Out

I see you set the variable
blocks(42)

and you’re multiplying it in some blocks
blocks(43)

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Use logcat to find out what’s going on Capturing Device Logs using adb logcat - Tutorials and Guides - MIT App Inventor Community

Also Upload your project into unchive.kodular.io to get some statistics of your project and provide a screenshot of the result overview

EDIT: it looks like the issue already has been identified

Taifun

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