"ERROR: d8 failed" while trying to build app, using AdvancedBarcodeScanner extension by Ken Nichols

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your error is d8 failed
see the tips for large projects here

Error d8 failed

Reduce your block count: Use parametrized procedures for common code Use Media text files instead of big clumps of text blocks Use generic blocks instead of repeating component event blocks Encode repeating decision patterns into lookup tables loaded from Media csv text files (does your blocks image look like a box of combs?) You don't need a component for every data instance. Reuse those components. If you can't fit data into a ListView or List Picker, show a small subset of the data in an A…

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