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安装了个 debian12.5，运行安装 fffmpeg 等组件竟然装不上，apt-get install ImageMagick dcraw ghostscript ffmpeg libjpeg libjpeg-devel libpng libpng-devel libtiff libtiff-devel libungif libungif-devel freetype zlib。
E: Unable to locate package ImageMagick
E: Unable to locate package dcraw
E: Package ‘ffmpeg’ has no installation candidate
E: Unable to locate package libjpeg
E: Unable to locate package libjpeg-devel
E: Unable to locate package libpng
E: Unable to locate package libpng-devel
E: Unable to locate package libtiff
E: Unable to locate package libtiff-devel
E: Unable to locate package libungif
E: Unable to locate package libungif-devel
E: Unable to locate package freetype
E: Unable to locate package zlib
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