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Latex 出现错误：LaTeX 错误：Unicode 字符： (U+FF1A)

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Latex 出现错误：LaTeX 错误：Unicode 字符： (U+FF1A)

编译没有问题，但是出现这个错误：Unicode 字符： (U+FF1A)

 \documentclass{report}
 \usepackage[utf8]{inputenc}
 \usepackage{graphicx} % Required for inserting images
 \usepackage{setspace}% for\doublespacing
 \usepackage{indentfirst}% for indent the first line
\usepackage{longtable}
\usepackage{textalpha}
 \usepackage{ragged2e}
 \usepackage[T1]{fontenc} % <-- new
\usepackage{xltabular} 
\begin{document}
The Social interaction (SI) test setup comprised a 42 \texttimes 42 cm Plexiglas arena with a 6.5 \texttimes 10 cm wire mesh cage on one side that allowed for olfactory and minimal tactile interaction. The social interaction zone (SIZ) encompasses a 14 \texttimes 24 cm area projecting 8 cm around the wire-mesh enclosure (Figure A).  The protocol included two trials, one without and one with an unfamiliar CD1 mouse present in the wire mesh enclosure, in this order, both covering 2.5 minutes. The C57BL/6J mouse was placed in the center of this arena, facing the SIZ, and could freely explore the chamber. After 2.5 min, the mouse was removed, and an unfamiliar CD1 mouse was placed in the cage. During this second trial, the C57BL/6J mouse’s reaction to the CD1 mouse was registered. Locomotion and time spent in the SIZ were recorded. The immobility time within the SIZ (indicating potential freezing behavior) was registered to adjust the C57BL/6J mouse’s time interacted with the CD1 mouse. The social interaction ratio (SIR) was calculated as a parameter to indicate social behavior. Variables analyzed within the SI test were locomotion (without a social target) and the social interaction ratio：\par
\end{document}

答案1

U+FF1A 是：专为亚洲文字设计的全宽冒号，请用:标准冒号替换它。

即替换social interaction ratio：为social interaction ratio:

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