{"status":500,"info":"Object reference not set to an instance of an object. at SmartLibrary.Application.Assemble.AssemblyApplication.GetAssemblyBookList(HttpRequest httpRequest)\r\n at SmartLibrary.Web.CQU.Controllers.AssemblyDetailController.UnBind() in E:\\工作代码\\branches\\2019\\CTGU(三峡大学)\\CQVIP.SmartLibrary.Web\\CQVIP.SmartLibrary.Web.CTGU\\Controllers\\AssemblyDetailController.cs:line 64\r\n at lambda_method(Closure , Object , Object[] )\r\n at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)\r\n at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)\r\n at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()\r\n at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()\r\n at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)\r\n at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()\r\n at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextExceptionFilterAsync()","result":false,"count":0,"page":1}