Hi Anne, thanks for posting! As Jeff says, the short answer to your
specific issues is that you do need to use Python 2.7.x. Arches is not
compatible with Python 3, and the error you encountered is a direct
reflection of that.

As for the documentation, I appreciate the opportunity to clarify this,
especially because we have had to shuffle the documentation around a bit
over the last couple of releases, but things are very much settled down now.

Your Version 1 <http://arches4.readthedocs.io/en/latest/overview/> is
actually the "latest" documentation (note the full URL), which is
up-to-date with the in-development code in the arches main repo. Version 2
<https://arches.readthedocs.io/en/stable/requirements-and-dependencies/> is
the "stable" version of the documentation, which is the latest stable
release (4.1.0) and the one that you should use. However, and this is
important, *please use arches.readthedocs.io
<http://arches.readthedocs.io>, instead of arches4.readthedoc.io
<http://arches4.readthedoc.io>*. The content is actually exactly the same
at those domains, but we'd like to begin referring to only the
arches.readthedocs.io url. Version 3
<https://github.com/archesproject/arches/wiki/Installing-Dependencies-on-Windows#shapely>
really
is a remnant of the past; I removed it from the side-bar index of the wiki,
but I didn't delete the page itself. I have found a link to it here
http://arches.readthedocs.io/en/4.0.1/installation/#dependencies (which
I'll fix presently) but is there somewhere else that you came across a link
to it? I'd like to correct any old references (which includes editing old
forum posts).

A quick explanation of the differences in documentation that you noticed:
Bower is used in the stable release of Arches (4.1), but has since been
replaced by Yarn, which is why you see Yarn documented in the "latest"
version and Bower in the "stable" version. The need for Shapely was removed
from Arches just before the 4.1 release, which is why that is not mentioned
in the "stable" version, but it is in the wiki page that is linked in the
4.0.1 documentation.

Final note: when viewing arches.readthedocs.io, you can easily switch
between documentation for different Arches releases (going back to version
2.1) in the bottom left-hand corner of the page. Stable will always be the
same as the most recent release (4.1.0 right now).


Again, thanks for asking for clarification, and I'll be posting soon with
an update to the post that is currently pinned to the forum to explain
documentation:
https://groups.google.com/forum/?hl=en#!topic/archesproject/UYdiTtejKfY

Adam

On Thu, Mar 15, 2018 at 6:09 PM, Anne Millington <troto...@gmail.com> wrote:

> Hello,
>
> I am new to Arches and to the group, and have been trying bravely to use
> the provided documentation to answer questions, but I have hit a bit of a
> snag.
>
> I am attempting to install in a Windows Server 2012 environment.  I used
> these instructions which I will call Version 1
> <http://arches4.readthedocs.io/en/latest/overview/>, and with some
> finagling successfully negotiated all the steps till I got to the actual
> installation of Arches.  I finally install Python 3.6.4, because I was
> having trouble installing pip.  All went well from there, and I have my
> virtual environment ready for Arches.  Upon issuing the command, I got this
> error:
>
>
> <https://lh3.googleusercontent.com/-eDsLXWbgZkg/Wqr6GFXpQZI/AAAAAAAAGyM/27zbgof71GITv0WtiLUu1V2EjhpPkOBOACLcBGAs/s1600/Capture.PNG>
>
>
>
> In researching the problem, I find there are at least three versions of
> the installation documentation, with some differences that might be
> relevant.  Version 2
> <https://arches.readthedocs.io/en/stable/requirements-and-dependencies/> 
> requires
> bower, and Version 3
> <https://github.com/archesproject/arches/wiki/Installing-Dependencies-on-Windows#shapely>
>  references
> git and shapely.  The Version 1 set of instructions I was using mention
> none of those.  Could something like this be the source of my error?
>
> I am thinking I should backtrack and follow Version 3 to have the most
> current docs to guide my install.  Further, I wonder if I should try again
> to install pip using Python 2.7.x, as that is your recommendation.
>
> Any assistance highly appreciated!
>
> <https://arches.readthedocs.io/en/stable/requirements-and-dependencies/>
>
>
>
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