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<div class="moz-cite-prefix">Hello Responders,<br>
<br>
Thanks very much for your suggestions and comments. Very helpful.<br>
<br>
I must say though that the last few comments have again
underscored my nervousness about changing anything that isn't
completely broken.<br>
<br>
Firstly, why are there two installation processes and what is the
purpose of each? This implies making a choice after learning
about the benefits and disadvantages of each. What are the
criteria for choosing one over the other? How long is the process
of understanding the options?<br>
<br>
Secondly, there seems to be no great consensus over the
possibility (or not) of conflicts between simultaneous
installations. Again, this makes me nervous.<br>
<br>
Thirdly, why are some operators running two or three simultaneous
installations? Does this mean that the latest version is not
adequate for some tasks?<br>
<br>
All these things give me pause and discourage me from wading in to
something that may have a lengthy learning curve and an
unpredictable outcome. In this case, the devil you know
definitely seems to be a worthy rule of thumb. At least, until it
fails utterly.<br>
<br>
In that regard, I discovered that at some point I had installed
2.8.1 and, remarkably, it would load my ostensibly corrupt
configuration file. I appear to be back in business.<br>
<br>
However, this version still bogs down upon loading the various
layers but does not fail after the delay. There are about 100
layers, mostly vector.<br>
<br>
Anyway, not sure if this is particularly helpful but is my current
thinking on the upgrading process.<br>
<br>
Thank you all again for your assistance…<br>
<br>
<div class="moz-signature">Cheers . . . . . Spring Harrison<br>
<br>
<br>
<br>
</div>
On 08-Jun-2018 06:25, DelazJ wrote:<br>
</div>
<blockquote
cite="mid:CAECJsSrF7tYD+u=nTy8QdqcSnSWur7vF0+LXmbMFcvvzkDaqRQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Hi,</div>
<div><br>
</div>
<div>Years that I'm using the osgeo4w installer (advanced
install) with three concurrent releases minimum (ltr, current
release, dev, and sometimes ltr-dev) and I can't recall on any
issue I got due to this situation.</div>
<div>And afaics there's nothing to be particularly careful of,
it's just about click click click process and all got
installed in the c:\osgeo4w64 folder.</div>
<div><br>
</div>
<div>Just wanted to share my experience.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Harrissou<br>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2018-06-08 13:49 GMT+02:00 Philip
Barlow <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:philipb@pembrokeshirecoast.org.uk"
target="_blank">philipb@pembrokeshirecoast.org.uk</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="white" link="blue" vlink="purple" lang="EN-GB">
<div class="m_5968697055809130997WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">AFAIK
if you install QGIS with the standalone installer
that just puts the application and everything it
needs into a folder in program files. You may
encounter issues if you installed multiple versions
with the osgeo4w installer if you aren’t careful.
</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> Qgis-user [mailto:<a
moz-do-not-send="true"
href="mailto:qgis-user-bounces@lists.osgeo.org"
target="_blank">qgis-user-bounces@<wbr>lists.osgeo.org</a>]
<b>On Behalf Of </b>Patrick Dunford<br>
<b>Sent:</b> 08 June 2018 11:01</span></p>
<div>
<div class="h5"><br>
<b>To:</b> qgis-user ML<br>
<b>Subject:</b> Re: [Qgis-user] Unable to load
project</div>
</div>
</div>
</div>
<div>
<div class="h5">
<p class="MsoNormal"> </p>
<p>That may be the case for the application.
However, depending on the installation, shared
libraries may be overwritten when a new
installation is carried out and cause older
software versions to stop working.</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On 08/06/18 20:11, Philip
Barlow wrote:</p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
am happily running 2.18.20, 3.0.3 and 3.1
(nightly builds) side by side on Windows 10.
2.x and 3.x store their user settings and
plugins in different locations so there are no
conflicts.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Phil</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> Qgis-user [<a
moz-do-not-send="true"
href="mailto:qgis-user-bounces@lists.osgeo.org"
target="_blank">mailto:qgis-user-bounces@<wbr>lists.osgeo.org</a>]
<b>On Behalf Of </b>Patrick Dunford<br>
<b>Sent:</b> 08 June 2018 05:02<br>
<b>To:</b> qgis-user ML<br>
<b>Subject:</b> Re: [Qgis-user] Unable to
load project</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p>The Windows version of Qgis allows you to run
multiple versions on your computer side by side.
I personally haven't used the Windows version
for several years so I can't be sure if you will
have any issues running 3.0 alongside your
current version. I run many of the editions I
have in virtual machines. If your PC has 8 GB or
more of memory, or if you have access to another
computer that can run Linux, then you can try it
out in a Linux virtual machine or physical
computer environment without disturbing your
current installation.</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On 08/06/18 07:38,
Springfield Harrison wrote:</p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p>hello Patrick, thanks for your ideas. I will
try the no plugins option.</p>
<p>The program will run with no project loaded
and it will run older project files but has
problems with newer ones for the same project.</p>
<p>I can load an older project file and then add
newer layers to it and reconfigure them, Etc.
This is very tedious but will amount to a
recovery. It is better than starting from
scratch for sure. But will the same problem
reoccur?</p>
<p>I have contemplated migrating to version 3
but I'm always leery of upgrades of anything
as they often bring problems with them. In
this list I notice many references to
installation issues and things not running.
2.10 is a devil I know.</p>
<p>can I expect any difficulties installing 3.0
+?</p>
<p>Cheers . . . . . Spring<br>
Samsung Tab 4</p>
<div>
<p class="MsoNormal">On Jun 7, 2018 1:30 AM,
"Patrick Dunford" <<a
moz-do-not-send="true"
href="mailto:enzedrailmaps@gmail.com"
target="_blank">enzedrailmaps@gmail.com</a>>
wrote:</p>
<div>
<p>Thre are a number of troubleshooting
steps to try out</p>
<p>1. Start up qgis using the -noplugins
switch or remove all installed plugins or
test removing one at a time.</p>
<p>2. Backup the config file and start with
a new empty config.</p>
<p>Qgis 2.10 is well out of support, is
there any reason you can't migrate to 3.0?</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On 07/06/18 18:28,
Springfield Harrison wrote:</p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p>hello Phil,</p>
<p>I did open the project file in Word,
2033 pages, and found 13 instances
referring to the dxf file. Hard to say
if anything was wrong there, nothing
obvious. At least to me. Some other
research I did indicates that maybe
there is an authentication problem, not
sure just what that boils down to.</p>
<p>I don't think the dxf file is the
problem. I renamed it and bypassed it on
the startup routine which the program
accepted but it still seized up with a
spinning cursor. Some things still
function, such as modifying the
properties of a layer , Etc. But the
screen is blank and nothing can be
saved.</p>
<p>For some time I have noticed that
loading a project file bogs down for a
while and then would resume to
completion. Now it bogs down and blows
up. The key message seems to be unknown
exception.</p>
<p>Some older project files do load
successfully however...</p>
<p>Cheers . . . . . Spring<br>
Samsung Tab 4</p>
<div>
<p class="MsoNormal">On Jun 6, 2018
11:15 PM, "Phil Wyatt" <<a
moz-do-not-send="true"
href="mailto:phil@wyatt-family.com"
target="_blank">phil@wyatt-family.com</a>>
wrote:</p>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"
lang="EN-AU">Can you open a copy
of the previous project file in
something like notepad and see
if anything obvious can be fixed
and or removed in relation to
the DXF layer?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"
lang="EN-AU"> </span></p>
<div>
<div
style="border:none;border-top:solid
#b5c4df 1.0pt;padding:3.0pt 0cm
0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> Qgis-user
[mailto:<a
moz-do-not-send="true"
href="mailto:qgis-user-bounces@lists.osgeo.org"
target="_blank">qgis-user-bounces@<wbr>lists.osgeo.org</a>]
<b>On Behalf Of </b>Springfield
Harrison<br>
<b>Sent:</b> Thursday, 7
June 2018 1:36 PM<br>
<b>To:</b> <a
moz-do-not-send="true"
href="mailto:qgis-user@lists.osgeo.org"
target="_blank">qgis-user@lists.osgeo.org</a>
List<br>
<b>Subject:</b> [Qgis-user]
Unable to load project</span></p>
</div>
</div>
<p class="MsoNormal"><span
lang="EN-AU"> </span></p>
<div>
<p class="MsoNormal"><span
lang="EN-AU">Hello All,<br>
<br>
Bad News. I am unable to load
a project that normally works
with no problems:</span></p>
<ol start="1" type="1">
<li class="MsoNormal">
<span lang="EN-AU">QGIS
2.10.1, Windows 7.</span></li>
<li class="MsoNormal">
<span lang="EN-AU">Project
starts to load, loads many
layers . . .</span></li>
<li class="MsoNormal">
<span lang="EN-AU">halts
loading "point Entity", a
DXF file</span></li>
<li class="MsoNormal">
<span lang="EN-AU">the DXF
file was renamed to trigger
the Handle Bad Layers
service</span></li>
<li class="MsoNormal">
<span lang="EN-AU">this was
bypassed but project loading
still fails to complete,
cursor spinner on constantly</span></li>
<li class="MsoNormal">
<span lang="EN-AU">exiting
with Save triggers "Unknown
Exception"</span></li>
<li class="MsoNormal">
<span lang="EN-AU">the project
file is trashed to 0kb</span></li>
<li class="MsoNormal">
<span lang="EN-AU">Exiting
without Save is OK but no
project can be loaded</span></li>
<li class="MsoNormal">
<span lang="EN-AU">Restoring
previous project file
versions yields the same
results</span></li>
<li class="MsoNormal">
<span lang="EN-AU">Loading
some other projects works
but may have cursor spinner</span></li>
</ol>
<p><span lang="EN-AU">Any ideas
what is going on here? I have
rebooted the computer.</span></p>
<p><span lang="EN-AU">Thanks very
much . . . .</span></p>
<p class="MsoNormal"><span
lang="EN-AU"> </span></p>
<div>
<p class="MsoNormal"><span
lang="EN-AU">Cheers . . . .
. Springfield Harrison</span></p>
</div>
<p class="MsoNormal"><span
lang="EN-AU"> </span></p>
</div>
<p class="MsoNormal"><span
lang="EN-AU"> </span></p>
</div>
</div>
</div>
<p class="MsoNormal"><br>
<br>
<br>
</p>
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