从文档中提取的分区键与头c中指定的分区键不匹配#

我有一些代码(已经存在很久了)。看起来像这样:

public async Task CreateAsync(T model, string partitionKey)
{
    await _client.CreateDocumentAsync(
        UriFactory.CreateDocumentCollectionUri(
            _databaseName,
            _collectionName
        ),
        model,
        new RequestOptions
        {
            PartitionKey = new PartitionKey(partitionKey)
        });
}

我创建了一个新的数据库(cosmos db),当我试图保存一个记录时,我得到了一个错误:

从文档中提取的分区键与标头中指定的分区键不匹配

我使用的JSON如下所示:

{
    "_id" : ObjectId("5c3e516647d3c103a0ad0959"),
    "gtin" : "4548736035652",
    "modelAlias" : "KDL-32WD756",
    "modelGroup" : "WD75",
    "retailerTitle" : "Sony Bravia 32WD756BU LED HD 1080p Smart TV, 32 with Freeview HD & Cable Management System",
    "shortTitle" : "Sony WD75 32 inch Black",
    "summary" : "The Sony WD75 in Black is a smart TV, and comes with a 32 inch, full HD, LED screen.",
    "variant" : "4548736035645",
    "colour" : "Blacks",
    "resolution" : "Medium",
    "curved" : "No",
    "panelType" : "LED",
    "3D" : "No",
    "size" : "Small",
    "goodOnWall" : "No",
    "darksAndBrights" : "Medium",
    "refreshRate" : "Standard",
    "richerColours" : "No",
    "wiFi" : "Yes",
    "smart" : "Yes",
    "recordable" : "Yes",
    "latestModel" : "No",
    "soundQuality" : "Low",
    "voiceActivated" : "No",
    "inputs" : "Two",
    "pictureQuality" : "Medium",
    "brand" : "Sony",
    "energyEfficiency" : "Medium",
    "sizeBoundary" : "Upper small",
    "mountabilityFunction" : "Bad",
    "screenSize" : "31-40",
    "viewingAngle" : "Wide",
    "descriptions" : [
        {
            "criteriaName" : "Size",
            "attributeName" : "Small",
            "description" : "Compact screen size"
        }
    ],
    "categoryId" : "televisions",
    "id" : "94305057-fc1f-3f88-cb74-7056e72077ac"
}