求助： error C2385: 对“Close”的访问不明确

#pragma once

namespace ExportWordDocumen {

    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;
    using namespace System::IO;
    using namespace System::Reflection;

    /// <summary>
    /// Form1 摘要
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO:  在此处添加构造函数代码
            //
        }
    protected:
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::Button^ button1;
    protected:

    private:
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        void InitializeComponent(void)
        {
            this->button1 = (gcnew System::Windows::Forms::Button());
            this->SuspendLayout();
            //
            // button1
            //
            this->button1->Location = System::Drawing::Point(96, 209);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(64, 27);
            this->button1->TabIndex = 0;
            this->button1->Text = L"button1";
            this->button1->UseVisualStyleBackColor = true;
            this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
            //
            // Form1
            //
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 12);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(284, 261);
            this->Controls->Add(this->button1);
            this->Name = L"Form1";
            this->Text = L"Form1";
            this->ResumeLayout(false);

        }
#pragma endregion
    private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)
    {
        namespace MSWord = Microsoft::Office::Interop::Word;
        Object^ path;                              //文件路径变量
        String^ strContent;                        //文本内容变量
        MSWord::Application^ wordApp;               //Word应用程序变量
        MSWord::Document^ wordDoc;                  //Word文档变量
        path = "C:\\Users\\Administrator\\Desktop\\测试" + DateTime::Now.ToString("yyyyMMddHHmmss") + ".doc";
        wordApp = gcnew MSWord::ApplicationClass(); //初始化
        wordApp->Visible = true;//使文档可见
        //如果已存在，则删除
        if (File::Exists((String^)path))
        {
            File::Delete((String^)path);
        }
        //由于使用的是COM库，因此有许多变量需要用Missing.Value代替
        Object^ Nothing = Missing::Value;
        wordDoc = wordApp->Documents->Add(Nothing, Nothing, Nothing, Nothing);//ref Nothing);
        //#region 行间距与缩进、文本字体、字号
        wordApp->Selection->ParagraphFormat->LineSpacing = 2;//设置文档的行间距
        wordApp->Selection->ParagraphFormat->FirstLineIndent = 0;//首行缩进的长度
        //写入普通文本
        strContent = "题都城南庄\n";
        wordDoc->Paragraphs->Last->Range->Font->Size = 22;
        wordDoc->Paragraphs->Last->Range->Font->Name = "方正小标宋简体";
        wordDoc->Paragraphs->Last->Range->Text = strContent;
        wordApp->Selection->ParagraphFormat->Alignment = MSWord::WdParagraphAlignment::wdAlignParagraphCenter;
        Object^ unite = MSWord::WdUnits::wdStory;
        wordApp->ActiveDocument->PageSetup->LeftMargin = wordApp->CentimetersToPoints(float::Parse("1.5"));//左页边距
        wordApp->Selection->EndKey( unite,  Nothing);//将光标移到文本末尾
        wordApp->Selection->ParagraphFormat->FirstLineIndent = 10;//设置首行缩进的长度
        strContent = "去年今日此门中，\n";
        wordDoc->Paragraphs->Last->Range->Font->Name = "华文行楷";
        wordDoc->Paragraphs->Last->Range->Font->Size = 48;
        wordDoc->Paragraphs->Last->Range->Text = strContent;
        wordApp->Selection->ParagraphFormat->Alignment = MSWord::WdParagraphAlignment::wdAlignParagraphCenter;
        wordApp->Selection->EndKey(unite, Nothing);//将光标移到文本末尾
        strContent = "人面桃花相映红。\n";
        wordDoc->Paragraphs->Last->Range->Text = strContent;
        wordApp->Selection->ParagraphFormat->Alignment = MSWord::WdParagraphAlignment::wdAlignParagraphCenter;
        wordApp->Selection->EndKey(unite, Nothing);//将光标移到文本末尾
        strContent = "人面不知何处去，\n";
        wordDoc->Paragraphs->Last->Range->Text = strContent;
        wordApp->Selection->ParagraphFormat->Alignment = MSWord::WdParagraphAlignment::wdAlignParagraphCenter;
        wordApp->Selection->EndKey(unite, Nothing);//将光标移到文本末尾
        strContent = "桃花依旧笑春风。\n";
        wordDoc->Paragraphs->Last->Range->Text = strContent;
        wordApp->Selection->ParagraphFormat->Alignment = MSWord::WdParagraphAlignment::wdAlignParagraphCenter;
        //#endregion
        wordApp->Selection->EndKey( unite,  Nothing); //将光标移动到文档末尾
        //WdSaveFormat为Word 2003文档的保存格式
        Object^ format = MSWord::WdSaveFormat::wdFormatDocument;// office 2007就是wdFormatDocumentDefault
        //将wordDoc文档对象的内容保存为DOCX文档
        wordDoc->SaveAs( path,  format,  Nothing,  Nothing,  Nothing,  Nothing,  Nothing,  Nothing, Nothing, Nothing, Nothing, Nothing,  Nothing, Nothing, Nothing, Nothing);
        //wordDoc->Close(Nothing, Nothing, Nothing);
    }
    };
}