Neptune.cls is a LaTeX document class (or a package bundle providing one) used to format documents according to the Neptune style — typically for specific journals, conferences, or institutional templates. Below are concise actionable steps to find, download, and install it.
If none of these apply, consider using more widely supported classes like memoir or scrbook . However, for those who truly need it, obtaining the correct version of neptune.cls is essential. neptune.cls download
The version of neptune.cls you downloaded expects specific fonts (e.g., newtxtext , Fira Sans , or custom math fonts) that are not installed on your system. Fix: Install the required font packages via tlmgr install newtx (TeX Live) or manually download the fonts. Alternatively, edit neptune.cls and comment out or replace font calls with standard ones (e.g., \RequirePackagetimes ). Neptune
Since this is a custom class, you need to obtain it from the source where it is required. Common places include: However, for those who truly need it, obtaining
Concise checklist (actionable)