[erlang-questions] Problem installing RabbitMQ

[Merlin Brasil]

Thanks for the very specific and absolutely spot-on information, Luke!

There was indeed a prior installation in the registry under Wow6432Node
and, after deleting that 7.1 reference, the RabbitMQ install worked
perfectly, as advertised.

And, yes, I had posted the problem to the RMQ list several days ago, but
had no response there, at least not that I noticed. I thought about the
problem and wrote, I think, a better problem description to the Erlang
list. The problem seemed to be more Erlang-related, which turned out to be
a good decision.

Thanks again for the specificity of your answer and the code-reference was
an added bonus :)  Your resume now resides on my desktop :) First beer's on
me when you make it to Rio!

Best regards,
Merlin

On Sat, Nov 10, 2018 at 11:50 AM Luke Bakken <luke@REDACTED> wrote:

> Hi Merlin,
>
> I swear I saw this question posted by you in another forum like the
> rabbitmq-users mailing list or Stack Overflow. Did you post this elsewhere?
>
> At any rate, this is the code that detects Erlang version:
>
>
> https://github.com/rabbitmq/rabbitmq-server-release/blob/master/packaging/windows-exe/rabbitmq_nsi.in#L264-L302
>
> One thing that is probably not obvious is that the NSIS-based installer
> for RabbitMQ is 32-bit. That means it only looks in the Wow6432Node
> section of the Windows registry. I suspect you have a stale key under that
> starting point, in the path Software\Ericsson\Erlang
>
> Thanks,
> Luke
>
> On Sat, Nov 10, 2018 at 1:14 AM Merlin Brasil <merlinbrasil@REDACTED>
> wrote:
>
>> Hi, new to Erlang.
>>
>> Just downloaded the latest Erlang to my Windows 10 computer.
>>
>> When I go to install RabbitMQ, I get the following message:
>>
>> [image: RabbitMQ Error.png]
>>
>> I already had versions 3 and 6 of Erlang, which I uninstalled, but I
>> cannot find ANY reference to a version 7.1
>> ANYWHERE on my computer. Registry points to the latest version 21, as
>> does the Environment Path variable
>>
>> I'd be most grateful for any help you can provide locating this problem
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20181111/961c3754/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: RabbitMQ Error.png
Type: image/png
Size: 2739 bytes
Desc: not available
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20181111/961c3754/attachment.png>