installing firebase tools doesn’t work on mac

I install firebase-tools with npm
but terminal can’t find firebase-tools :(…
also I tried auto installing script “curl -sL | bash” but this also give me this error “This tool has encountered an error.”
what should i do?after I installed firebase tools
after typed command

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Author: Dean97K

Saving Image Firebase (Flutter)

how are you?
I’m having a boring problem, I’m a beginner in mobile development and also a beginner with firebase.
I’m having a problem saving an image in firebase and recovering it, when I fill out the form and select the image with image picker it just doesn’t appear and the firebase returns me null.

sorry to put the code in pastebin, I can’t put long codes here in the stack and I don’t want to pollute the forum

FishManager Class ---

Trophy Class ---

FishForm Class ---

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Author: Erik Mendes