No preview after fresh install

[Brett-Plemons]

When i click latex preview i get an error
this one is in the console:

{"message": "Unhandled error", "reason": null, "traceback": "Traceback (most recent call last):\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/web.py\", line 1699, in _execute\n    result = await result\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/gen.py\", line 736, in run\n    yielded = self.gen.throw(*exc_info)  # type: ignore\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/jupyterlab_latex/build.py\", line 194, in get\n    out = yield self.run_latex(cmd_sequence)\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/gen.py\", line 729, in run\n    value = future.result()\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/gen.py\", line 736, in run\n    yielded = self.gen.throw(*exc_info)  # type: ignore\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/jupyterlab_latex/build.py\", line 158, in run_latex\n    code, output = yield run_command(cmd)\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/gen.py\", line 729, in run\n    value = future.result()\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/gen.py\", line 209, in wrapper\n    yielded = next(result)\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/jupyterlab_latex/util.py\", line 48, in run_command_async\n    stderr=Subprocess.STREAM)\n  File \"/home/brett/anaconda3/lib/python3.7/site-packages/tornado/process.py\", line 248, in __init__\n    self.proc = subprocess.Popen(*args, **kwargs)\n  File \"/home/brett/anaconda3/lib/python3.7/subprocess.py\", line 775, in __init__\n    restore_signals, start_new_session)\n  File \"/home/brett/anaconda3/lib/python3.7/subprocess.py\", line 1522, in _execute_child\n    raise child_exception_type(errno_num, err_msg, err_filename)\nFileNotFoundError: [Errno 2] No such file or directory: 'xelatex': 'xelatex'\n"}

this one is in terminal

{
      "Host": "localhost:8888",
      "Connection": "keep-alive",
      "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/73.0.3683.86 Chrome/73.0.3683.86 Safari/537.36",
      "Authorization": "token ac94a47fe54c37a002e45a585d9fd6805d12a9dbac24b305",
      "Content-Type": "application/json",
      "Accept": "*/*",
      "Referer": "http://localhost:8888/lab",
      "Accept-Encoding": "gzip, deflate, br",
      "Accept-Language": "en-US,en;q=0.9",
      "Cookie": "_xsrf=2|8d87f430|6916c753a69b835ef917aa860a353bbc|1553539238; username-localhost-8888=\"2|1:0|10:1555597900|23:username-localhost-8888|44:MTdhNDFhNWFhY2YzNGZhZTk1Mzc4NzE2M2QyZDY2NzQ=|e3b512f35f78761d688662e19d36d37d1a4cd420236254023186db7dc90c9ee7\""
    }
[E 09:31:40.580 LabApp] 500 GET /latex/build/Documents/Programming%20Classes/Modern%20Python%203%20BootCamp/sample.tex?synctex=1&1555597900571 (127.0.0.1) 4.87ms referer=http://localhost:8888/lab

I just installed and loaded it into jupyter with the commands in the readme. Not sure what I am missing

[BrianChevalier]

Do you have XeLaTeX installed on your system? Open a terminal and type xelatex --version to see if it's installed. Also, are you running on Mac, Linux or Windows?

[mnancel]

I'm having the same issue, with pdflatex

pdfTeX 3.14159265-2.6-1.40.19 (TeX Live 2018)

on Mac OSX 10.14.

If I fully fill and restart my Lab, and close the previous Latex Preview tab, and right-click+"Show Latex Preview" once more, then the preview appears correctly, with no error, and saving+compiling will work for a while. I don't know what triggers it, but after a while I start getting this error again, and am not be able to compile my pdf file.

[dmarienburg]

I had a the same issue on Windows 10. I uninstalled the extension after disabling it, created a conda package then reinstalled and reactivated. Now there is no option for previewing.

Here is the output from running xelatex --version (if that is helpful):

MiKTeX-XeTeX 2.9.6942 (0.999991) (MiKTeX 2.9.7050 64-bit)
(C) 1994-2008 by SIL International, (C) 2009-2012 by Jonathan Kew, (C) 2010-2012 by Han The Thanh, (C) 2012-2013 by Khaled Hosny
TeX is a trademark of the American Mathematical Society.
using bzip2 version 1.0.6, 6-Sept-2010
compiled with curl version 7.61.1; using libcurl/7.61.1 WinSSL
compiled with expat version 2.2.6; using expat_2.2.6
compiled with fontconfig version 2.13.1; using 2.13.1
compiled with freetype2 version 2.9.1; using 2.9.1
compiled with graphite2 version 1.3.12; using 1.3.12
compiled with harfbuzz version 2.0.2; using 2.0.2
compiled with icu version 60.1; using 60.1
compiled with jpeg version 9.3
compiled with liblzma version 50020042; using 50020042
compiled with libpng version 1.6.35; using 1.6.35
compiled with libressl version LibreSSL 2.8.2; using LibreSSL 2.8.2
compiled with MiKTeX Application Framework version 4.6961; using 4.6961
compiled with MiKTeX Core version 14.7079; using 14.7079
compiled with MiKTeX Archive Extractor version 1.6882; using 1.6882
compiled with MiKTeX Package Manager version 6.7100; using 6.7100
compiled with poppler version 0.60.1
using teckit version 2.4
compiled with uriparser version 0.9.2
compiled with zlib version 1.2.11; using 1.2.11

[michelfei]

I had a the same issue on Windows 10. I uninstalled the extension after disabling it, created a conda package then reinstalled and reactivated. Now there is no option for previewing.

Here is the output from running xelatex --version (if that is helpful):

MiKTeX-XeTeX 2.9.6942 (0.999991) (MiKTeX 2.9.7050 64-bit)
(C) 1994-2008 by SIL International, (C) 2009-2012 by Jonathan Kew, (C) 2010-2012 by Han The Thanh, (C) 2012-2013 by Khaled Hosny
TeX is a trademark of the American Mathematical Society.
using bzip2 version 1.0.6, 6-Sept-2010
compiled with curl version 7.61.1; using libcurl/7.61.1 WinSSL
compiled with expat version 2.2.6; using expat_2.2.6
compiled with fontconfig version 2.13.1; using 2.13.1
compiled with freetype2 version 2.9.1; using 2.9.1
compiled with graphite2 version 1.3.12; using 1.3.12
compiled with harfbuzz version 2.0.2; using 2.0.2
compiled with icu version 60.1; using 60.1
compiled with jpeg version 9.3
compiled with liblzma version 50020042; using 50020042
compiled with libpng version 1.6.35; using 1.6.35
compiled with libressl version LibreSSL 2.8.2; using LibreSSL 2.8.2
compiled with MiKTeX Application Framework version 4.6961; using 4.6961
compiled with MiKTeX Core version 14.7079; using 14.7079
compiled with MiKTeX Archive Extractor version 1.6882; using 1.6882
compiled with MiKTeX Package Manager version 6.7100; using 6.7100
compiled with poppler version 0.60.1
using teckit version 2.4
compiled with uriparser version 0.9.2
compiled with zlib version 1.2.11; using 1.2.11

I have the same issue on win10. I install the plugin , but there's no option for preview after right click. I use the texlive 2020.