Pawel の投稿は正しく、電話することから始めるべきです
Breeze.config.initializeAdapterInstances  
実際にクライアント側のメタデータを作成するには、次のように記述します。(簡単な例)。
initializeMetadataStore(myEntityManager.metadataStore);
function initializeMetadataStore(metadataStore) {
    var et = new EntityType({
        shortName: "Person",
        namespace: "Sample_WebApi.Models"
    });
    et.addProperty( new DataProperty({
        name: "personId",
        dataType: DataType.Int32,
        isNullable: false,
        isPartOfKey: true,
    }));
    et.addProperty(new DataProperty({
        name: "firstName",
        dataType: DataType.String,
        isNullable: false,
    }));
    et.addProperty(new DataProperty({
        name: "lastName",
        dataType: DataType.String,
        isNullable: false,
    }));
    et.addProperty(new DataProperty({
        name: "birthDate",
        dataType: DataType.DateTime,
        isNullable: true
    }));
    et.addProperty(new NavigationProperty({
        name: "meals",
        entityTypeName: "Meal",
        isScalar: false,
        associationName: "personMeals"
    }));
    metadataStore.addEntityType(et);
    et = new EntityType({
        shortName: "Meal",
        namespace: "Sample_WebApi.Models"
    });
    et.addProperty(new DataProperty({
        name: "mealId",
        dataType: DataType.Int32,
        isNullable: false,
        isPartOfKey: true,
    }));
    et.addProperty(new DataProperty({
        name: "personId",
        dataType: DataType.Int32,
        isNullable: false,
    }));
    et.addProperty(new DataProperty({
        name: "dateConsumed",
        dataType: DataType.DateTime,
        isNullable: false,
    }));
    et.addProperty(new NavigationProperty({
        name: "person",
        entityTypeName: "Person",
        isScalar: true,
        associationName: "personMeals",
        foreignKeyNames: ["personId"]
    }));
    et.addProperty(new NavigationProperty({
        name: "dishes",
        entityTypeName: "Dish",
        isScalar: false,
        associationName: "mealDishes",
    }));
    metadataStore.addEntityType(et);
    et = new EntityType({
        shortName: "Dish",
        namespace: "Sample_WebApi.Models"
    });
    et.addProperty(new DataProperty({
        name: "dishId",
        dataType: DataType.Int32,
        isNullable: false,
        isPartOfKey: true,
    }));
    et.addProperty(new DataProperty({
        name: "foodName",
        dataType: DataType.String,
        isNullable: false,
    }));
    et.addProperty(new DataProperty({
        name: "servingSize",
        dataType: DataType.Double,
        isNullable: false,
    }));
    et.addProperty(new NavigationProperty({
        name: "food",
        entityTypeName: "Food",
        isScalar: true,
        associationName: "DishFood",
        foreignKeyNames: ["foodName"]
    }));
    metadataStore.addEntityType(et);
    et = new EntityType({
        shortName: "Food",
        namespace: "Sample_WebApi.Models"
    });
    et.addProperty(new DataProperty({
        name: "foodName",
        dataType: DataType.String,
        isNullable: false,
        isPartOfKey: true,
    }));
    et.addProperty(new DataProperty({
        name: "calories",
        dataType: DataType.Int32,
        isNullable: false,
    }));
    metadataStore.addEntityType(et);
}