Troubleshooting

• How to Fix MiKTeX’s “Too Many Open Files” Installation Error
  The MiKTeX “Too many open files” error usually means the installer hit an operating-system file-handle limit. Diagnose it by platform and check logs.
• How to Fix a Gaussian Syntax Error on the Input Line
  Fix Gaussian input syntax errors by checking the reported line, route keywords, blank-line separators, charge and multiplicity, and geometry formatting.
• How to Fix Errors in LyX
  To fix a LyX error, find the first actionable LaTeX error in the log, inspect its source line, then correct the LyX content or settings and recompile.