dotnet core 和 Ubuntu 的 TypeInitializationException / SSL 库问题答案

【问题标题】：TypeInitializationException / SSL library issue with dotnet core and Ubuntudotnet core 和 Ubuntu 的 TypeInitializationException / SSL 库问题
【发布时间】：2021-04-16 09:59:18
【问题描述】：

我有一个 dotnet 核心应用 (netcoreapp3.1) 在启动时崩溃并出现以下错误：

$ dotnet run
Unhandled exception. System.TypeInitializationException: The type initializer for 'Crypto' threw an exception.
 ---> System.TypeInitializationException: The type initializer for 'CryptoInitializer' threw an exception.
 ---> System.DllNotFoundException: Unable to load shared library 'libSystem.Security.Cryptography.Native.OpenSsl' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: liblibSystem.Security.Cryptography.Native.OpenSsl: cannot open shared object file: No such file or directory
   at Interop.CryptoInitializer.EnsureOpenSslInitialized()
   at Interop.CryptoInitializer..cctor()
   --- End of inner exception stack trace ---
   at Interop.CryptoInitializer.Initialize()
   at Interop.Crypto..cctor()
   --- End of inner exception stack trace ---
   at Interop.Crypto.EvpPkeyDestroy(IntPtr pkey)
   at System.Security.Cryptography.SafeEvpPKeyHandle.ReleaseHandle()
   at System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean disposeOrFinalizeOperation)
   at System.Runtime.InteropServices.SafeHandle.Dispose(Boolean disposing)
   at System.Runtime.InteropServices.SafeHandle.Finalize()

我已经搜索过这个错误，但大部分讨论是从 2016 年开始的。

我正在使用 Ubuntu 20.04。

系统信息：

$ openssl version 
OpenSSL 1.0.2n  7 Dec 2017

$ dotnet --version
5.0.101

$ lsb_release -a 
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:    20.04
Codename:   foca

如何运行这个应用程序？

更新，我跑了sudo apt-get install lsb-core。

它仍然不起作用，但 lsb_release -a 现在不同了：

$ lsb_release -a 
LSB Version:    core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:    20.04
Codename:   focal

【问题讨论】：

consider setting the LD_DEBUG environment variable你做到了吗？
@mjwills 这将有助于显示尝试的搜索路径，但不能解决问题。
设置的时候发生了什么？
@mjwills 它仍然崩溃但显示更多诊断信息
askubuntu.com/a/230773 修复了吗？

标签： c# .net linux .net-core

【解决方案1】：

一个 hacky 解决方案是将 5.x 库复制到 3.x：

sudo cp /usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.2/libSystem.Security.Cryptography.Native.OpenSsl.a /usr/share/dotnet/shared/Microsoft.NETCore.App/3.1.11/libSystem.Security.Cryptography.Native.OpenSsl.a

sudo cp /usr/share/dotnet/shared/Microsoft.NETCore.App/5.0.2/libSystem.Security.Cryptography.Native.OpenSsl.so /usr/share/dotnet/shared/Microsoft.NETCore.App/3.1.11/libSystem.Security.Cryptography.Native.OpenSsl.so

【讨论】：