Workaround for: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-09-05 Thread Uwe Stöhr
As of today the update servers are working again. However, one needs a 
workaround because the buggy DLL of MiKTeX prevents the updates from 
being applied.


it seems that the bug affects all users of Windows 7 while Win 10 is not 
affected. For the affected users there is a workaround but you need 
admin permissions and some knowledge:


- open a Windows console as admin (type in "cmd" in the Windows Start 
field, and right-click on it to run it with admin privileges)

- execute these 2 commands subsequently:
initexmf --admin --update-fndb
and
initexmf --admin --mklinks --force
- close the Windows console
- now start the MiKTeX console
- choose there to restart with admin privileges
- check for updates and if there are any apply them

From my point of view I see no other option than to provide a new LyX 
for Windows installer that repairs broken system by executing these 
commands in the background after LyX was installed. This way users with 
problems can just run the Win installer again and get a working LyX back 
in a minute without the need to know about console commands etc.


@developers: Maybe now you see that the Win installer must do more and 
forcing a MiKTeX update is necessary as you can see in this case. We 
cannot say "not our fault". Yes, LyX is not to blame but what matters is 
if users can use LyX. In my case I wanted to write an urgent letter with 
LyX but could not use it and had to use LibreOffice instead.


regards Uwe


Re: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-09-04 Thread Scott Kostyshak
On Tue, Sep 04, 2018 at 12:23:34PM -0400, Richard Kimberly Heck wrote:
> On 09/04/2018 11:04 AM, Scott Kostyshak wrote:
> > On Tue, Sep 04, 2018 at 02:03:45PM +0200, Uwe Stöhr wrote:
> >> Am 29.08.2018 um 03:30 schrieb Uwe Stöhr:
> >>
> >>> I hope this issue will be fixed soon and report back.
> >> Status report: The problem persists. The fix for MiKTeX was already 
> >> released
> >> but the main update server of MiKTeX is down. One cannot retrieve any 
> >> update
> >> yet, no matter what update server is chosen.
> > Thanks for these status updates, Uwe. I find them helpful--I was just
> > about to recommend my teaching assistant to install MiKTeX and LyX, but
> > now I'll just have them wait a week or so.
> 
> TeXLive and LyX? I think there's a general sense that this is more stable.

Ah yes, that's a good idea.

Scott


signature.asc
Description: PGP signature


Re: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-09-04 Thread Richard Kimberly Heck
On 09/04/2018 11:04 AM, Scott Kostyshak wrote:
> On Tue, Sep 04, 2018 at 02:03:45PM +0200, Uwe Stöhr wrote:
>> Am 29.08.2018 um 03:30 schrieb Uwe Stöhr:
>>
>>> I hope this issue will be fixed soon and report back.
>> Status report: The problem persists. The fix for MiKTeX was already released
>> but the main update server of MiKTeX is down. One cannot retrieve any update
>> yet, no matter what update server is chosen.
> Thanks for these status updates, Uwe. I find them helpful--I was just
> about to recommend my teaching assistant to install MiKTeX and LyX, but
> now I'll just have them wait a week or so.

TeXLive and LyX? I think there's a general sense that this is more stable.

Riki



Re: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-09-04 Thread Scott Kostyshak
On Tue, Sep 04, 2018 at 02:03:45PM +0200, Uwe Stöhr wrote:
> Am 29.08.2018 um 03:30 schrieb Uwe Stöhr:
> 
> > I hope this issue will be fixed soon and report back.
> 
> Status report: The problem persists. The fix for MiKTeX was already released
> but the main update server of MiKTeX is down. One cannot retrieve any update
> yet, no matter what update server is chosen.

Thanks for these status updates, Uwe. I find them helpful--I was just
about to recommend my teaching assistant to install MiKTeX and LyX, but
now I'll just have them wait a week or so.

Scott


signature.asc
Description: PGP signature


Re: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-09-04 Thread Uwe Stöhr

Am 29.08.2018 um 03:30 schrieb Uwe Stöhr:


I hope this issue will be fixed soon and report back.


Status report: The problem persists. The fix for MiKTeX was already 
released but the main update server of MiKTeX is down. One cannot 
retrieve any update yet, no matter what update server is chosen.


regards Uwe


Re: WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-08-28 Thread Andrew Parsloe




On 29/08/2018 1:30 p.m., Uwe Stöhr wrote:

Dear LyX Windows users,

yesterday I noticed a severe bug in the LaTeX system "MiKTeX" that LyX 
is usually using under Windows. The problem is that if you

- upgrade MiKTeX or LyX
or
- install a new LaTeX package
or
- refresh the MiKTeX package database

you will end up in a broken LaTeX with error messages like "unknown 
procedure entry point".


I experimented around for more than 2 hours but could not find a 
workaround once LaTeX is broken. Even a reinstallation of LyX or 
MiKTeX doesn't help since the result are always broken DLLs and I 
could not find a way to prevent this.


Therefore I strongly recommend not to change anything in your LaTeX 
setup nor to compile LyX documents that might use special LaTeX 
packages hat are not yet installed on your PC.

Also don't install another version of LyX or reinstall LyX.

I hope this issue will be fixed soon and report back.

regards Uwe
I met this problem too, but after waiting a day and then updating MiKTeX 
again it has vanished and I am once more able to compile documents (and 
use instant preview, which the problem also interfered with).


Andrew

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus



WARNING: updating LaTeX or LyX under Windows will currently break LaTeX installation

2018-08-28 Thread Uwe Stöhr

Dear LyX Windows users,

yesterday I noticed a severe bug in the LaTeX system "MiKTeX" that LyX 
is usually using under Windows. The problem is that if you

- upgrade MiKTeX or LyX
or
- install a new LaTeX package
or
- refresh the MiKTeX package database

you will end up in a broken LaTeX with error messages like "unknown 
procedure entry point".


I experimented around for more than 2 hours but could not find a 
workaround once LaTeX is broken. Even a reinstallation of LyX or MiKTeX 
doesn't help since the result are always broken DLLs and I could not 
find a way to prevent this.


Therefore I strongly recommend not to change anything in your LaTeX 
setup nor to compile LyX documents that might use special LaTeX packages 
hat are not yet installed on your PC.

Also don't install another version of LyX or reinstall LyX.

I hope this issue will be fixed soon and report back.

regards Uwe