TracMathPlugin doesn't produce pic

[wanmei]

I configged TracMathPlugin following the instructions on this page: wiki:TracMathPlugin? , and other related pages. But when I typed a fomula on a wiki page, I got the following log. The log just stopped printing there, and the page was loading and loading and resulted in nothing. In my directry I've got the tex doument, and nothing else.

Would there be any advices? Thanks in advance.

The log I've got:

This is pdfTeX, Version 3.1415926-2.3-1.40.12 (MiKTeX 2.9) (preloaded format=latex 2012.2.24) 24 FEB 2012 14:39 entering extended mode 75e6a1bc71817d01039617721a3b6f4c191d37ff.tex (D:\tmp\75e6a1bc71817d01039617721a3b6f4c191d37ff.tex LaTeX2e <2011/06/27> Babel <v3.8m> and hyphenation patterns for english, afrikaans, ancientgreek, ar abic, armenian, assamese, basque, bengali, bokmal, bulgarian, catalan, coptic, croatian, czech, danish, dutch, esperanto, estonian, farsi, finnish, french, ga lician, german, german-x-2009-06-19, greek, gujarati, hindi, hungarian, iceland ic, indonesian, interlingua, irish, italian, kannada, kurmanji, lao, latin, lat vian, lithuanian, malayalam, marathi, mongolian, mongolianlmc, monogreek, ngerm an, ngerman-x-2009-06-19, nynorsk, oriya, panjabi, pinyin, polish, portuguese, romanian, russian, sanskrit, serbian, slovak, slovenian, spanish, swedish, swis sgerman, tamil, telugu, turkish, turkmen, ukenglish, ukrainian, uppersorbian, u senglishmax, welsh, loaded. ("C:\Program Files\MiKTeX 2.9\tex\latex\base\article.cls" Document Class: article 2007/10/19 v1.4h Standard LaTeX document class ("C:\Program Files\MiKTeX 2.9\tex\latex\base\size10.clo" File: size10.clo 2007/10/19 v1.4h Standard LaTeX file (size option) ) \c@part=\count79 \c@section=\count80 \c@subsection=\count81 \c@subsubsection=\count82 \c@paragraph=\count83 \c@subparagraph=\count84 \c@figure=\count85 \c@table=\count86 \abovecaptionskip=\skip41 \belowcaptionskip=\skip42 \bibindent=\dimen102 ) ("C:\Program Files\MiKTeX 2.9\tex\latex\base\inputenc.sty" Package: inputenc 2008/03/30 v1.1d Input encoding file \inpenc@prehook=\toks14 \inpenc@posthook=\toks15

("C:\Program Files\MiKTeX 2.9\tex\latex\base\utf8.def" File: utf8.def 2008/04/05 v1.1m UTF-8 support for inputenc Now handling font encoding OML ... ... no UTF-8 mapping file for font encoding OML Now handling font encoding T1 ... ... processing UTF-8 mapping file for font encoding T1

("C:\Program Files\MiKTeX 2.9\tex\latex\base\t1enc.dfu" File: t1enc.dfu 2008/04/05 v1.1m UTF-8 support for inputenc

defining Unicode char U+00A1 (decimal 161) defining Unicode char U+00A3 (decimal 163) defining Unicode char U+00AB (decimal 171) defining Unicode char U+00BB (decimal 187) defining Unicode char U+00BF (decimal 191) defining Unicode char U+00C0 (decimal 192) defining Unicode char U+00C1 (decimal 193) defining Unicode char U+00C2 (decimal 194) defining Unicode char U+00C3 (decimal 195) defining Unicode char U+00C4 (decimal 196) defining Unicode char U+00C5 (decimal 197) defining Unicode char U+00C6 (decimal 198) defining Unicode char U+00C7 (decimal 199) defining Unicode char U+00C8 (decimal 200) defining Unicode char U+00C9 (decimal 201) defining Unicode char U+00CA (decimal 202) defining Unicode char U+00CB (decimal 203) defining Unicode char U+00CC (decimal 204) defining Unicode char U+00CD (decimal 205) defining Unicode char U+00CE (decimal 206) defining Unicode char U+00CF (decimal 207) defining Unicode char U+00D0 (decimal 208) defining Unicode char U+00D1 (decimal 209) defining Unicode char U+00D2 (decimal 210) defining Unicode char U+00D3 (decimal 211) defining Unicode char U+00D4 (decimal 212) defining Unicode char U+00D5 (decimal 213) defining Unicode char U+00D6 (decimal 214) defining Unicode char U+00D8 (decimal 216) defining Unicode char U+00D9 (decimal 217) defining Unicode char U+00DA (decimal 218) defining Unicode char U+00DB (decimal 219) defining Unicode char U+00DC (decimal 220) defining Unicode char U+00DD (decimal 221) defining Unicode char U+00DE (decimal 222) defining Unicode char U+00DF (decimal 223) defining Unicode char U+00E0 (decimal 224) defining Unicode char U+00E1 (decimal 225) defining Unicode char U+00E2 (decimal 226) defining Unicode char U+00E3 (decimal 227) defining Unicode char U+00E4 (decimal 228) defining Unicode char U+00E5 (decimal 229) defining Unicode char U+00E6 (decimal 230) defining Unicode char U+00E7 (decimal 231) defining Unicode char U+00E8 (decimal 232) defining Unicode char U+00E9 (decimal 233) defining Unicode char U+00EA (decimal 234) defining Unicode char U+00EB (decimal 235) defining Unicode char U+00EC (decimal 236) defining Unicode char U+00ED (decimal 237) defining Unicode char U+00EE (decimal 238) defining Unicode char U+00EF (decimal 239) defining Unicode char U+00F0 (decimal 240) defining Unicode char U+00F1 (decimal 241) defining Unicode char U+00F2 (decimal 242) defining Unicode char U+00F3 (decimal 243) defining Unicode char U+00F4 (decimal 244) defining Unicode char U+00F5 (decimal 245) defining Unicode char U+00F6 (decimal 246) defining Unicode char U+00F8 (decimal 248) defining Unicode char U+00F9 (decimal 249) defining Unicode char U+00FA (decimal 250) defining Unicode char U+00FB (decimal 251) defining Unicode char U+00FC (decimal 252) defining Unicode char U+00FD (decimal 253) defining Unicode char U+00FE (decimal 254) defining Unicode char U+00FF (decimal 255) defining Unicode char U+0102 (decimal 258) defining Unicode char U+0103 (decimal 259) defining Unicode char U+0104 (decimal 260) defining Unicode char U+0105 (decimal 261) defining Unicode char U+0106 (decimal 262) defining Unicode char U+0107 (decimal 263) defining Unicode char U+010C (decimal 268) defining Unicode char U+010D (decimal 269) defining Unicode char U+010E (decimal 270) defining Unicode char U+010F (decimal 271) defining Unicode char U+0110 (decimal 272) defining Unicode char U+0111 (decimal 273) defining Unicode char U+0118 (decimal 280) defining Unicode char U+0119 (decimal 281) defining Unicode char U+011A (decimal 282) defining Unicode char U+011B (decimal 283) defining Unicode char U+011E (decimal 286) defining Unicode char U+011F (decimal 287) defining Unicode char U+0130 (decimal 304) defining Unicode char U+0131 (decimal 305) defining Unicode char U+0132 (decimal 306) defining Unicode char U+0133 (decimal 307) defining Unicode char U+0139 (decimal 313) defining Unicode char U+013A (decimal 314) defining Unicode char U+013D (decimal 317) defining Unicode char U+013E (decimal 318) defining Unicode char U+0141 (decimal 321) defining Unicode char U+0142 (decimal 322) defining Unicode char U+0143 (decimal 323) defining Unicode char U+0144 (decimal 324) defining Unicode char U+0147 (decimal 327) defining Unicode char U+0148 (decimal 328) defining Unicode char U+014A (decimal 330) defining Unicode char U+014B (decimal 331) defining Unicode char U+0150 (decimal 336) defining Unicode char U+0151 (decimal 337) defining Unicode char U+0152 (decimal 338) defining Unicode char U+0153 (decimal 339) defining Unicode char U+0154 (decimal 340) defining Unicode char U+0155 (decimal 341) defining Unicode char U+0158 (decimal 344) defining Unicode char U+0159 (decimal 345) defining Unicode char U+015A (decimal 346) defining Unicode char U+015B (decimal 347) defining Unicode char U+015E (decimal 350) defining Unicode char U+015F (decimal 351) defining Unicode char U+0160 (decimal 352) defining Unicode char U+0161 (decimal 353) defining Unicode char U+0162 (decimal 354) defining Unicode char U+0163 (decimal 355) defining Unicode char U+0164 (decimal 356) defining Unicode char U+0165 (decimal 357) defining Unicode char U+016E (decimal 366) defining Unicode char U+016F (decimal 367) defining Unicode char U+0170 (decimal 368) defining Unicode char U+0171 (decimal 369) defining Unicode char U+0178 (decimal 376) defining Unicode char U+0179 (decimal 377) defining Unicode char U+017A (decimal 378) defining Unicode char U+017B (decimal 379) defining Unicode char U+017C (decimal 380) defining Unicode char U+017D (decimal 381) defining Unicode char U+017E (decimal 382) defining Unicode char U+200C (decimal 8204) defining Unicode char U+2013 (decimal 8211) defining Unicode char U+2014 (decimal 8212

Contents in tex document:

\documentclass{article} \usepackage[utf8]{inputenc} \usepackage{cmap} \usepackage{type1ec} \usepackage​[T1]{fontenc} \usepackage{amsmath} \usepackage{amsthm} \usepackage{amssymb} \usepackage{bm} \usepackage[active,pdftex,tightpage]{preview} \pagestyle{empty} \begin{document} \begin{preview} $\mbox{Var}[\tau(X_p,X_d)] = \mbox{Var}[E(\tau(X_p,X_d)|X_p)] E[\mbox{Var}(\tau(X_p,X_d)|X_p)]$ \end{preview} \end{document}