## LaTeX Submissions

Attention! New AMS LaTeX files are available! Please use the latest version (v6.1) of the AMS LaTeX template. The new template follows the updated submission format required for all new manuscripts submitted on or after 1 September 2021. Authors revising manuscripts first submitted on or before 31 August 2021 can choose to use the current v6.1 or use the older template on the Legacy Manuscript and Formatting Components page.

**If you encounter the error "Package xkeyval Error: xkeyval loaded before \documentclass" when attempting to build your LaTeX paper with v6.1, then your LaTeX packages are out of date. Upgrading to TeX Live 2021 will resolve this error.**

The AMS LaTeX support team is available to help resolve issues related to the use of AMS LaTeX files for submissions to the AMS and the submission of AMS LaTeX files to the Editorial Manager system. Please note that we are unable to devote resources to answering other general LaTeX questions or to troubleshoot issues with non-AMS templates.

### Upgrade to TeX Live 2021

If you have not already done so, we recommend that you upgrade to TeX Live 2021. We also suggest to authors to use the TeXworks editor that is included in the TeX Live download. If your PDF compiles in TeXworks running TeX Live 2020 or 2021, then it should compile correctly when you submit your files to Editorial Manager.

### Common LaTeX Submission Issues

Below are some of the most common problems authors face when submitting a LaTeX manuscript to Editorial Manager:

• Missing files: Be sure to include all template and source files when uploading your files to the EM system, including ametsocV6.1.cls, ametsocV6.bst, and all figure files.
• Incorrect item type: All figure files should be designated with EM’s “Rendered Figure” item type. All LaTeX files uploaded to EM must have the item type “LaTeX File (.tex, .sty, .cls, .bst, .bib).”
• Directory paths in figures: All directory paths need to be removed from figure names (e.g., `\includegraphics[width=28pc]{fig1.pdf}`, NOT `\includegraphics[width=28pc]{myfigures/fig1.pdf}`).
• Unicode characters: Unicode characters that are not compatible with LaTeX are often inserted when text is copied from another source and is pasted into a .tex or .bib file. These characters need to be replaced with the appropriate character or defined in the preamble of the .tex file using the `\DeclareUnicodeCharacter` command. See #10 in the FAQ.