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原文链接：https://blog.csdn.net/Death_Note_/article/details/126694555
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E: Package 'gcc-8' has no installation candidate
less /etc/apt/sources.list里加上这句话
deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe
来源：gcc - Install gcc7 on ubuntu 22.04 - Ask Ubuntu
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标签：gcc,Death,ubuntu22.04,Note,ubuntu,转载 From： https://www.cnblogs.com/devilmaycry812839668/p/17134759.html