缺少字体,怎么解决?

## 编译环境 操作系统 *** [ ] Windows 7/8/10** * [ ] macOS * [ ] Linux `若需勾选，请把[ ]改成[x]` Tex发行版 * [ ] TexLive `年份` *** [ ] MikTeX `版本号`** * [ ] CTeX `若需勾选，请把[ ]改成[x]` ## 我的问题 GB.cpx) ("C:\Program Files\MiKTeX 2.9\tex/latex/cjk/GB\c19song.fd") LaTeX Font Warning: Font shape `C19/song/b/n' undefined (Font) using `C19/song/m/n' instead on input line 45. ("C:\Program Files\MiKTeX 2.9\tex/latex/amsfonts\umsa.fd") ("C:\Program Files\MiKTeX 2.9\tex/latex/amsfonts\umsb.fd") ("C:\Program Files\MiKTeX 2.9\tex/latex/wasysym\uwasy.fd") LaTeX Font Warning: Font shape `C19/fsong/m/n' undefined (Font) using `C19/song/m/n' instead on input line 45. ("C:\Program Files\MiKTeX 2.9\tex/latex/zhmetrics\c19hei.fd") LaTeX Font Warning: Font shape `OT1/cmr/m/n' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `OML/cmm/m/it' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `OMS/cmsy/m/n' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `OT1/cmr/bx/n' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `OML/cmm/b/it' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `OMS/cmsy/b/n' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. LaTeX Font Warning: Font shape `U/wasy/m/n' in size <10.53937> not available (Font) size <10.95> substituted on input line 129. 查了下资料说 字体包缺失, 但是我找不到(应该叫font-ch)的那个字体包