使用“apt install”安装clang和libclang软件包时，会出现404错误

Question

在使用PureOS上的‘apt install’安装clang和libclang包时，我遇到了404错误。

在运行命令sudo apt install clang时，我看到以下错误消息

Err:1 https://repo.pureos.net/pureos amber/main amd64 libclang-common-7-dev amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:2 https://repo.pureos.net/pureos amber/main amd64 libclang1-7 amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:3 https://repo.pureos.net/pureos amber/main amd64 clang-7 amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:4 https://repo.pureos.net/pureos amber/main amd64 libomp5-7 amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:5 https://repo.pureos.net/pureos amber/main amd64 libomp-7-dev amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:6 https://repo.pureos.net/pureos amber/main amd64 llvm-7-runtime amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:7 https://repo.pureos.net/pureos amber/main amd64 llvm-7 amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:8 https://repo.pureos.net/pureos amber/main amd64 llvm-7-dev amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libclang-common-7-dev_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libclang1-7_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/clang-7_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libomp5-7_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libomp-7-dev_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/llvm-7-runtime_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/llvm-7_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/llvm-7-dev_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

libclang也有类似的情况：

Err:1 https://repo.pureos.net/pureos amber/main amd64 libclang1-7 amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:2 https://repo.pureos.net/pureos amber/main amd64 libclang-common-7-dev amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
Err:3 https://repo.pureos.net/pureos amber/main amd64 libclang-7-dev amd64 1:7.0.1-8
404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libclang1-7_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libclang-common-7-dev_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Failed to fetch https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7/libclang-7-dev_7.0.1-8_amd64.deb 404 Not Found [IP: 138.201.228.45 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

在浏览https://repo.pureos.net/pureos/pool/main/l/llvm-toolchain-7时，我可以看到包在那里，但它们的名称中都包含了一个“+deb10u 2”。例如，如果您查看第一个404，您将看到apt试图找到一个名为libclang-common-7-dev_7.0.1-8_amd64.deb，的包，但是存储库中的包名为libclang-common-7-dev_7.0.1-8+deb10u2_amd64.deb.

我只在这两个特定的软件包中遇到这个问题，我使用过其他几个软件包，而且一切都很好。

我已经尝试过apt建议的解决方案(“可能运行apt-获取更新或尝试-修复-缺失？”)。实际上，当我尝试使用apt install运行--fix-missing时，我会得到一个额外的错误行，上面写着：“无法更正丢失的包。”

我也尝试使用apt代替，我也尝试运行一个干净的，更新和升级之前，用apt和apt安装软件包，但也没有成功。

Answer 1

您需要做的是暂时将sources.list文件移出APT的目录，运行apt update (我猜这将刷新缓存的数据)，将文件移回并再次运行apt update。实质上：

$ sudo mv /etc/apt/sources.list /tmp/
$ sudo apt update
$ sudo mv /tmp/sources.list /etc/apt/
$ sudo apt update

现在，您应该能够正常地获取包。