我嘗試閱讀較舊的帖子，但它們似乎都無關緊要。由於某種原因，當我嘗試在 TeXworks 中編譯任何文件時，我收到錯誤：
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (MiKTeX 2.9 64-bit) entering extended mode (C:/Users/USER/Documents/ads.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-2013-05-26, greek, gujarati, hindi, hungarian, iceland ic, indonesian, interlingua, irish, italian, kannada, kurmanji, latin, latvian, lithuanian, malayalam, marathi, mongolian, mongolianlmc, monogreek, ngerman, n german-x-2013-05-26, nynorsk, oriya, panjabi, pinyin, polish, portuguese, roman ian, russian, sanskrit, serbian, slovak, slovenian, spanish, swedish, swissgerm an, tamil, telugu, turkish, turkmen, ukenglish, ukrainian, uppersorbian, usengl ishmax, welsh, loaded. ! LaTeX Error: File `article.cls' not found. Type X to quit or <RETURN> to proceed, or enter new name. (Default extension: cls) Enter file name:
我編譯以前可以工作的文件並收到此錯誤。我過去也遇到過這個問題，儘管我沒有做任何事情，但它已經解決了。現在它又這樣做了。我不明白為什麼。有人可以幫幫我嗎？我試圖編譯產生上述錯誤的檔案是：
\documentclass[a4paper]{article}
\begin{document}
oko
\end{document}