math/unsupported

Math uses LaTeX that yuanme can’t render, or isn’t valid LaTeX: an unknown command or environment, a group that is never closed, or \label outside a numbered environment. yuanme renders math to MathML when it builds, and fails the build rather than show the TeX.

Example

$$\begin{eqnarray} a &=& b \end{eqnarray}$$

Fix

Use what the help suggests, such as align for eqnarray, or define a missing command in [math.macros] in yuanme.toml.