无法配置淘汰验证

我正在尝试配置淘汰赛验证,但我的设置似乎被忽略了.这就是我试图配置它的方式

var knockoutValidationSettings = {
    insertMessages: true,
    decorateElement: true,
    errorMessageClass: 'error',
    errorElementClass: 'error',
    errorClass: 'error',
    errorsAsTitle: true,
    parseInputAttributes: false,
    messagesOnModified: true,
    decorateElementOnModified: true,
    decorateInputElement: true
};
ko.validation.init(knockoutValidationSettings);

ko.applyBindings(vm, $('#dropzone')[0]);

我知道选项对象不是问题,因为这很好用

var knockoutValidationSettings = {
    insertMessages: true,
    decorateElement: true,
    errorMessageClass: 'error',
    errorElementClass: 'error',
    errorClass: 'error',
    errorsAsTitle: true,
    parseInputAttributes: false,
    messagesOnModified: true,
    decorateElementOnModified: true,
    decorateInputElement: true
};
//ko.validation.init(knockoutValidationSettings);

ko.applyBindingsWithValidation(vm, $('#dropzone')[0], knockoutValidationSettings);

如何让init函数工作？显然,我想把这个初始化移到我应用程序根目录的一个地方.