Fixes #166: Error on miniconda-version *not* specified instead of when it *is* specified.

[chrisjbillington]

A simple fix to what appeared to be a simple bug.

Raise an error if on non-x64 architectures, miniconda-version is not specified, instead of when it is specified.

[jaimergp]

Thanks! Do we need a test for this or is it enough with what we have so far?

[chrisjbillington]

I thought I'd add that this does not fix the more general problem of old conda builds (many of which are 32-bit) being unsupported - ongoing attempts to address that issue are in #168.

However, some 32-bit builds, namely Windows, have recent relases:

Miniconda3-latest-Windows-x86.exe	55.3M	2021-07-21 11:05:08	a082be7ef6dd4f14b974dab2d78c5693

So this fix restores the ability to use them, at least.

[ktbarrett]

@jaimergp I think tests would show that 32 bit support is still not quite there, but I don't think that fact should block this obvious bugfix from coming in.

[jaimergp]

LGTM but I'd have @bollwyvl have a look too!

[bollwyvl]

Yep, the fix looks good. As it was a bug, we probably do need a test, which can then also be used for documentation purposes in the README.

Also it probably needs to have the build re-run to update the transpiled assets

[jaimergp]

This seems to be successfully using x86-latest on Windows now and failing (on purpose) on Ubuntu/Mac. I did this because latest x86-Ubuntu predates 4.6, which is the oldest we are supporting currently.

[chrisjbillington]

Thanks very much for fleshing this out @jaimergp! That one-character change was getting close to the limits of what I might be able to do with javascript. Really appreciate it!

[ktbarrett]

Any status on this?

[jaimergp]

Let's ping core :) @conda-incubator/setup-miniconda

[ktbarrett]

3 months later this has been approved, but still hasn't been merged. What gives?

[goanpeca]

Whoops, this fell under the cracks! Sorry

Merging˜!