我将解决方案 ElasticSearch.net 和嵌套库升级到 7.1.0 版本。 部署代码后，我收到以下错误：
BadImageFormatException: Could not load file or assembly 'netstandard' or one of its dependencies. Reference assemblies should not be loaded for execution. They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058)
System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +225
System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection) +110
System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +22
System.Reflection.Assembly.Load(String assemblyString) +34
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +48
我尝试将库复制到我部署的服务器，但这不起作用。
升级详情： 1.(ElasticSearch.net 5.6.1 至 7.1.0
2.(嵌套 5.6.1 到 7.1.0
3.( .已安装网络框架 4.7.3
4.( VS2017
从 NuGet 包管理器升级。
通过在csproj文件中手动添加netstandard库的引用，该问题已得到解决，如下所示：
<Reference Include="netstandard">
<Private>True</Private>
</Reference>
上述解决方法来自 - 您必须添加对程序集"netstandard， Version=2.0.0.0"的引用