Object prototype may only be an Object or null: undefined

[CarltonHenderson]

With a workflow something like this:

jobs:
  build_and_test:
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v2
      - uses: volta-cli/action@v1

Sometimes I get this error:

Run volta-cli/action@v1
  with:
downloading volta@1.0.5
Object prototype may only be an Object or null: undefined
Waiting 15 seconds before trying again
Object prototype may only be an Object or null: undefined
Waiting 17 seconds before trying again
Error: Object prototype may only be an Object or null: undefined

But we usually get something like this:

Run volta-cli/action@v1
downloading volta@1.0.5
/bin/tar xz --warning=no-unknown-keyword -C /home/runner/work/_temp/78439663-c6be-4524-a513-5bae4b96382d/bin -f /home/runner/work/_temp/b685a57c-16cf-4c07-b8bd-31cb865c76ee
/home/runner/work/_temp/78439663-c6be-4524-a513-5bae4b96382d/bin/volta setup
caching volta@1.0.5 into /opt/hostedtoolcache/volta/1.0.5/x64
adding /opt/hostedtoolcache/volta/1.0.5/x64/bin to $PATH

[rwjblue]

Hmm, this is definitely strange. Any other error information printed to the console?

[rwjblue]

I'm going to go ahead and close this for now, happy to reopen if it is still affecting folks but I think we'll need some way to debug (e.g. a reproduction repo or something).

[colossalpat]

Ran into the same issue earlier this afternoon. Our solution was to update to v4 and the error went away.

Wondering if v1 had changes recently?

[rwjblue]

Volta 1.1.0 was recently released, but unfortunately at the time of release only v4 of the action was able to download its assets (causing the error mentioned in this issues title). I've since backported those changes to all of the other major branches.

See #117 for details.