找不到所需的库 libhostfxr.so。网络核心Linux

Question

 \xe2\x9d\xaf dotnet ef   \nA fatal error occurred. The required library libhostfxr.so could not be found.\nIf this is a self-contained application, that library should exist in [/home/ru/.dotnet/tools/.store/dotnet-ef/6.0.2/dotnet-ef/6.0.2/tools/netcoreapp3.1/any/].\nIf this is a framework-dependent application, install the runtime in the global location [/usr/share/dotnet] or use the DOTNET_ROOT environment variable to specify the runtime location or register the runtime location in [/etc/dotnet].\n\nThe .NET runtime can be found at:\n  - https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=arch-x64&apphost_version=6.0.2\n\n~ \n

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dotnet ef 不起作用\n运行命令后不起作用，我该怎么办？

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Answer 1

通过将其添加到 shell 配置文件的任何部分（可以在末尾）来解决：

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# Netcore\nexport PATH=$PATH:$HOME/.dotnet/tools\nexport DOTNET_ROOT=$HOME/.dotnet\nexport PATH=$PATH:$DOTNET_ROOT\n

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您的 shell 配置文件可以位于以下文件之一：

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• Bash 外壳：~/.bash_profile、~/.bashrc
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• Korn Shell：~/.kshrc 或 .profile
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• Z Shell：~/.zshrc 或 .zprofile
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不要忘记使用命令source ~/.bashrc（取决于您的 shell 配置文件），以便可以加载环境变量。

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更多这里

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要检查一切是否正常，请运行dotnet ef，您应该得到如下结果：

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\xe2\x9d\xaf dotnet ef\n\n                     _/\\__       \n               ---==/    \\\\      \n         ___  ___   |.    \\|\\    \n        | __|| __|  |  )   \\\\\\   \n        | _| | _|   \\_/ |  //|\\\\ \n        |___||_|       /   \\\\\\/\\\\\n\nEntity Framework Core .NET Command-line Tools 6.0.2\n\nUsage: dotnet ef [options] [command]\n\nOptions:\n  --version        Show version information\n  -h|--help        Show help information\n  -v|--verbose     Show verbose output.\n  --no-color       Don\'t colorize output.\n  --prefix-output  Prefix output with level.\n\nCommands:\n  database    Commands to manage the database.\n  dbcontext   Commands to manage DbContext types.\n  migrations  Commands to manage migrations.\n\nUse "dotnet ef [command] --help" for more information about a command.\n

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