PPAPI插件编译出现 “LNK2001：无法解析的外部符号” 错误，如何解决？

编译最简PPAPI插件时，报错“LNK2001：无法解析的外部符号”及“LNK2019：无法解析的外部符号”错误。
插件的代码如下：

// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>
#include <stdint.h>
#include <windows.h>
#include <tchar.h>

#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"

// This is the simplest possible C++ Pepper plugin that does nothing.

// This object represents one time the page says <embed>.
class MyInstance : public pp::Instance {
public:
    explicit MyInstance(PP_Instance instance) : pp::Instance(instance) {}
    virtual ~MyInstance() {}

    virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]) {
        return true;
    }
};

// This object is the global object representing this plugin library as long
// as it is loaded.
class MyModule : public pp::Module {
public:
    MyModule() : pp::Module() {}
    virtual ~MyModule() {}

    // Override CreateInstance to create your customized Instance object.
    virtual pp::Instance* CreateInstance(PP_Instance instance) {
        return new MyInstance(instance);
    }
};

namespace pp {

    // Factory function for your specialization of the Module object.
    Module* CreateModule() {
        return new MyModule();
    }

}  // namespace pp

编译后，出现以下报错：

使用的是Visual Studio 2019编译器。

如何解决此报错？

望各位解答。如能解答，感激不尽！