2019-05-09 10:27:01,330 线程ID:[80] 日志级别：ERROR 出错类：WebApp.HttpGlobalExceptionFilter property:[(null)] - 错误描述：System.TypeInitializationException: The type initializer for 'System.DrawingCore.GDIPlus' threw an exception. ---> System.DllNotFoundException: Unable to load shared library 'gdiplus' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libgdiplus: cannot open shared object file: No such file or directory
   at System.DrawingCore.GDIPlus.GdiplusStartup(UInt64& token, GdiplusStartupInput& input, GdiplusStartupOutput& output)
   at System.DrawingCore.GDIPlus..cctor()
   --- End of inner exception stack trace ---
   at System.DrawingCore.GDIPlus.GdipGetGenericFontFamilySansSerif(IntPtr& fontFamily)
   at System.DrawingCore.FontFamily..ctor(GenericFontFamilies genericFamily)
   at System.DrawingCore.FontFamily.get_GenericSansSerif()
   at System.DrawingCore.Font.CreateFont(String familyName, Single emSize, FontStyle style, GraphicsUnit unit, Byte charSet, Boolean isVertical)
   at Common.VerifyCodeHelper.CreateByteByImgVerifyCode(String verifyCode, Int32 width, Int32 height) in F:\src\WebApp\Common\VerifyCodeHelper.cs:line 206
   at WebApp.Controllers.VerifyCodeController.NumberVerifyCode() in F:\src\WebApp\Controllers\VerifyCodeController.cs:line 27
   at lambda_method(Closure , Object , Object[] )
   at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextExceptionFilterAsync() 

解决方法

Centos 7

yum install libgdiplus-devel