Error: Invalid value for '--experimental-login'

[Jim Fisk]

I'm trying to login to snapcraft via a GitHub Action to automatically deploy my snap. When I try to do this via `snapcraft login --with <(echo "$SNAPCRAFT_LOGIN")` I get the following error:

```
Error: Invalid value for '--experimental-login'
is not a valid boolean
Error: Process completed with exit code 2.
```

This is detailed here: https://github.com/plentico/plenti/issues/151#issuecomment-814458432

I was able to do this previously without any issues, but when I bump my CI environment from Ubuntu 18.04 to Ubuntu 20.04 I'm getting this issue, possibly because the new 4.6 release: https://forum.snapcraft.io/t/call-for-testing-snapcraft-4-6/23549

Other people seem to be experiencing this as well: https://twitter.com/dosco/status/1378055663792705536

[Jim Fisk (jimafisk)]

This has been fixed in https://github.com/snapcore/snapcraft/pull/3493

That should be pulled in soon, but in the meantime you can rename your environment variable from SNAPCRAFT_LOGIN to something else to avoid naming conflicts and it should work. Thanks!

[Sergio Schvezov (sergiusens)]

In 4.6.1