Error when exporting the application [DX error again]

MIT App Inventor Help
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3

Image 5251px x 5251px :face_with_head_bandage:

And in app displayed in 165px x 165px...

But I think the most important reason may be that you are using 3 different extensions from qrcode, if at least 2 of them contain zxing library then we have source of DX error.

I removed the zxing library from the one extension.

HikDetect2.aia (3.4 MB)

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Help with image quality