'"EACCES: permission denied, copyfile..." when starting Firebase emulator

Environment: MacOS 10.15.7

Running firebase emulators:start gave the following error in my firebase-debug.log:

EACCES: permission denied, copyfile '/var/folders/dc/jq6m586d0mngjdm2zlljtm740000gn/T/tmp-9821Nl0DY3zOWlHD.tmp' -> '/Users/[my_username]/.cache/firebase/emulators/ui-v1.7.0.zip'

My emulator quit starting up when it was downloading the UI. The following was the last step in my terminal window before the emulator started to shut down:

`i ui: downloading ui-v1.7.0.zip...`

Is there a way to grant Firebase permissions to download the UI to the correct location?

firebasemacospermissionsfirebase-tools


Solution 1:[1]

I solved this issue by running sudo firebase emulators:start to allow the firebase emulator UI to be downloaded to the correct location. After doing this, I am able to run firebase emulators:start without the sudo keyword as the UI has already been downloaded to the correct location.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Matthew Keller

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