Re: texlive2025, TeXstudio, reinstallation

Inserting /usr/local/texlive/2025/bin/x86_64-linux in the Commands 
($PATH) of Build Options (Show advanced options) of the Build element 
and trying Build & View gives the same dialog but rather more details in 
the messages:

kpathsea: Running mktexfmt pdflatex.fmt

/usr/local/texlive/2025/bin/x86_64-linux/mktexfmt: kpsewhich 
-var-value=TEXMFROOT failed, aborting early. BEGIN failed--compilation 
aborted at /usr/local/texlive/2025/bin/x86_64-linux/mktexfmt line 25.

Process exited with error(s)

After chasing some links, this comes from the file 
/usr/local/texlive/2025/texmf-dist/scripts/fmtutil.pl

Its contents down to line 25 are:

my $TEXMFROOT; BEGIN { $^W = 1; $TEXMFROOT = `kpsewhich 
-var-value=TEXMFROOT`; if ($?) { die "$0: kpsewhich -var-value=TEXMFROOT 
failed, aborting early.\n"; } chomp($TEXMFROOT); unshift(@INC, 
"$TEXMFROOT/tlpkg", "$TEXMFROOT/texmf-dist/scripts/texlive"); require 
"mktexlsr.pl"; TeX::Update->import(); }

kpsewhich -var-value=TEXFMROOT returns /usr/local/texlive/2025 whereas 
echo $TEXMFROOT returns nothing

I don't speak perl, unfortunately, but my sense of those lines is that 
if what kpsewhich .. returns does not match whatever

my $TEXMFROOT; returns, then die with the message above, as it does.

If in the shell I export TEXFMROOT=/usr/local/texlive/2025

and then re-try I still get the same set of error messages.

Perhaps there is something else I need to do to establish TEXMFROOT (or 
$TEXMFROOT) at the texlive level before fmtutil.pl

gets to look at it.

Advice/assistance most welcome

Cheers

Greg



On 2025-11-22 21:28, Greg Bennett wrote:
> Alex thanks for this. I tried various entries under $PATH in the 
> configure page for TeXstudio.
> I even rebooted in between them.
>
> Alas, I still get the same messages from TeXstudio
>
> Thanks again for looking
>
> Greg
>
> On 2025-11-22 19:34, Axel E. Retif wrote:
>> On 11/22/25 17:20, Greg Bennett wrote:
>>
>>>  From a terminal in my home directory I ran
>>> pdflatex gtest.tex
>>> which told me it was using Version 3,141592653-2,6-1.40.28 (TeX Live 
>>> 2025) (preloaded format=pdflatex)
>>> and ran to completion with the expected gtest.pdf. This suggests 
>>> that the TeXlive installation was found.
>>
>> Indeed.
>>
>>
>>> I deleted that ,pdf, fired up TeXstudio, opened gtest.tex, hit Build 
>>> & View from its Tools menu
>>> to get an immediate dialog:
>>>
>>> Could not start Build & View:PdfLatex:
>>> pdflatex -synctex=1 -interaction=nonstopmode "gtest".tex
>>
>> If I remember correctly, TeXstudio has its own section to configure 
>> the $PATH.
>>
>> The terminal takes the $PATH from what you specified according to TUG 
>> instructions, but I think TeXstudio comes preconfigured for TeX et 
>> al. to the usual path of Linux distributions.
>>
>> Here is an (very old) reply that deals with the issue:
>>
>> https://stackoverflow.com/questions/24615026/adding-texlive-to-texstudios-understanding-of-path 
>>
>>
>> Maybe it can help you.
>>
>>
>> Best regards
>>
>> Axel
>>
>