淘汰赛可观察到的列表创建引发错误

如何解决淘汰赛可观察到的列表创建引发错误

我有以下两个模型，一个模型有一个列表，其中包含另一个模型，如下所示

var ImplementationScopeVM = function (data) {
    var self = this;    
    if (data) {      
        this.countryScopes = ko.observableList(ImplementationCountryScopeVM,data.countryScopes,this);
       }    
    }};

var ImplementationCountryScopeVM = function (data,root) {   
    var self = this;        
    this.simpleInterfaces = ko.observable();
    this.averageInterfaces = ko.observable();
    this.complexInterfaces = ko.observable();      
    if (data) {
        this.payrollServiceID(data.payrollServiceID);
        this.simpleInterfaces(data.simpleInterfaces);
        this.averageInterfaces(data.averageInterfaces);      
    }
};

创建ObservableList时出现错误

Uncaught TypeError: item.RowState is not a function
    at knockout.extensions.js:586
    at Object.arrayFilter (knockout-3.4.2.debug.js:210)
    at Function.<anonymous> (knockout.extensions.js:585)
    at Function.evaluateImmediate_CallReadThenEndDependencyDetection (knockout-3.4.2.debug.js:2183)
    at Function.evaluateImmediate_CallReadWithDependencyDetection (knockout-3.4.2.debug.js:2150)
    at Function.evaluateImmediate (knockout-3.4.2.debug.js:2111)
    at Function.evaluatePossiblyAsync (knockout-3.4.2.debug.js:2076)
    at Function.notifySubscribers (knockout-3.4.2.debug.js:1330)
    at Function.valueHasMutated (knockout-3.4.2.debug.js:1548)
    at observable (knockout-3.4.2.debug.js:1514)

有人可以告诉我我在这里做错什么了吗

谢谢