Android Microsoft同步框架-ServerBlob为空错误

我正在使用Microsoft Sync Framework将android设备上的Datadictionary中的详细信息与SQL Server同步。最初，成功同步sql server中的所有数据。但是在添加一些数据后，当单击同步按钮时，会出现以下错误。你能告诉我有没有人碰到这个

[Sync Error]:Error occurs during sync. Please check logs below.
[Upload Change Response Error]: 500 Response: <ServiceError xmlns="http://schemas.datacontract.org/2004/07/Microsoft.Synchronization.Services" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><ErrorDescription>System.InvalidOperationException&#xD; serverBlob is empty&#xD; at Microsoft.Synchronization.Services.SqlProvider.SqlSyncProviderService.ApplyChanges(Byte[] serverBlob, List`1 entities)&#xD; at Microsoft.Synchronization.Services.UploadChangesRequestProcessor.ProcessRequest(Request incomingRequest)&#xD; at Microsoft.Synchronization.Services.SyncService`1.ProcessRequestForMessage(Stream messageBody)&#xD; &#xD; &#xD; </ErrorDescription></ServiceError>

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我已找到问题的根本原因。也就是说，当我从datadictionary存储中获取值时，

value在值中有单引号，因此无法在webview中加载值。现在我用\'

取代了单引号现在工作正常

是第一次同步吗？您是如何在客户端存储blob的？@JuneT:请检查edit您还没有回答我的问题…服务器blob错误通常发生在首次同步时，当您在正在上载的客户端上有数据且服务器blob尚未初始化时。同样，如何存储blob和初始值？

this.sendRequest = function (serviceUri, successCallback, errorCallback, dir) {

        TraceObj("[" + dir + " Request]:", serviceUri, this.dataObject());
        // Construct HTTP POST request
        var xmlHttp = new XMLHttpRequest();
        xmlHttp.open("POST", serviceUri);
        xmlHttp.setRequestHeader("Accept", "application/json");
        xmlHttp.setRequestHeader("Content-Type", "application/json");
        // Handle success & error response from server and then callback
        xmlHttp.onreadystatechange = function () {
            if (xmlHttp.readyState == 4) {
                if (xmlHttp.status == 200) {
                    var res = new SyncFormatter();
                    if (res.parse(xmlHttp.responseText)) {
                        TraceObj("[" + dir + " Response]:", serviceUri, res.dataObject());
                        alert("[" + dir + " Response]:", serviceUri, res.dataObject());
                        successCallback(res);
                        return;
                    }
                }
                TraceMsg("[" + dir + " Response Error]: ", xmlHttp.status + " Response: " + xmlHttp.responseText);
                errorCallback(xmlHttp.responseText);
            }
        };
        xmlHttp.send(this.toString());
    };
}