Math & Science ⇒ xparse | "Support l3kernel too old"

[ghostanime2001]

support l3kernel too old. error Package xparse What do I do here ? I have already refreshed the FNDB database.

Code: Select all

\documentclass[fleqn]{article} 
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amstext}
\usepackage{amsthm}
\usepackage{booktabs}
\usepackage{calc}
\usepackage[makeroom]{cancel}
\usepackage{chemfig}
\usepackage{chemmacros}
\usepackage[shortlabels,inline]{enumitem}
\usepackage{fix-cm}
\usepackage[T1]{fontenc}
\usepackage{fouridx}
\usepackage{fullpage} 
\usepackage[margin=1in]{geometry} 
\usepackage{graphics}
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage{mathtools}
\usepackage[version=3]{mhchem}
\usepackage{microtype}
\usepackage{multienum}
\usepackage{multirow}
\usepackage{pifont}
\usepackage{siunitx}
\usepackage{textcomp}
\usepackage{type1cm}
\usepackage{epstopdf}
\usepackage{ulem}
\usepackage{wasysym}
\usepackage{xfrac}
\usepackage{xspace}
\setlength{\parindent}{0in}
\setlength{\parskip}{0in}
\setlength{\mathindent}{0in}
\allowdisplaybreaks
\pagestyle{empty}
\DisableLigatures{encoding = *, family = *}
\newcommand{\since}{\raisebox{0.56pt}{\rotatebox[origin=c]{180}{$\Large\wasytherefore$}}}
\newcommand{\thus}{\Large{\wasytherefore}}
\newlist{longenum}{enumerate}{6}
\setlist[longenum,1]{label=\arabic*.}
\setlist[longenum,2]{label=\alph*)}
\setlist[longenum,3]{label=\alph*)}
\setlist[longenum,4]{label=(\roman*)}
\setlist[longenum,5]{label=(\alph*)}
\setlist[longenum,6]{label=\roman*)}
\begin{document}
\hfill\llap{Wed, March 17, 2010} \par
$I_{0}=\text{constant}=10^{-12}$ \\
\text{Intensity level at $I_{0}$ is 0. $I=I_{0}$} \par\medskip
$\begin{aligned}[t]
\beta&=10\log\left(\dfrac{I}{I_{0}}\right) \\
&=10\log\left(\dfrac{I_{0}}{I_{0}}\right) \\
&=10\log\left(1\right) \\
&=10\left(0\right) \\
&=0 
\end{aligned}$ \\
\hfill\llap{Mon, March 22, 2010} \par
Next week: 2 quizzes \\
Longitudinal: oscillation in the same direction \\
Transverse: vibration is perpindicular \par\medskip
$y(x,t)=f\left(x\mp vt\right)$ \\
$-$ \ce{->} $+$ direction \\
$+$ \ce{->} $-$ direction 
\end{document}

[Sunsailor]

I experience the same error. I just updated Miktex before it happened and did not alter the document. Did you do that as well? I fear it is a bug.

This is the error message from the log:

(C:\Users\User\AppData\Roaming\MiKTeX\2.9\tex\latex\l3packages\l3keys2e\l3keys2e.sty
(C:\Users\User\AppData\Roaming\MiKTeX\2.9\tex\latex\l3packages\xparse\xparse.sty
Package: xparse 2011/11/19 v2966 L3 Experimental document command parser


! Package xparse Error: Support package l3kernel too old..

Really need a solution fast, since I try to finish important work...

Oliver

[Sunsailor]

Hello again,

I came a little closer to the reasons of this error. The error appears if I use the siunitx package only. There must be a bug.

A good night to everyone,
Oliver

[tafi]

I too have this problem. With xparse and with l3keys2e. It means that siunitx package (among others) will not work correctly.

Just occurred after updating to the latest available l3 packages etc.

I suspect that the issue is of a similar type as last time we had this problem.

http://www.latex-community.org/forum/vi ... =9&t=14110

However, in this case I suspect that it lies in the packages themselves which don't appear to have been updated consistently.
This time, I don't think there is a workaround except to wait for the package authors to see the issue and fix it.

[ghostanime2001]

Hi sorry for the late update but I fixed it I went on my old post and did exactly what one person said and now it worked. There were alot of updates last night or two nights ago and then all my docments worked fine since last night until later today in the evening (Im on Toronto) and then it totally screwed up. I don't understand a thing why it worked fine once I did the update and it didn't work fine upto today. I hope Latex3 will fix alot of issues.