要解决“Apollo Server从Apollo Upload Client接收到空对象”的问题，您可以尝试以下解决方法：

1. 确保正确地配置了Apollo Upload Client。确保在Apollo Client的初始化过程中正确设置了ApolloLink。下面是一个示例：

import { createUploadLink } from 'apollo-upload-client';
import { ApolloClient, InMemoryCache, ApolloLink } from '@apollo/client';

const uploadLink = createUploadLink({
  uri: '/graphql',
});

const client = new ApolloClient({
  link: ApolloLink.from([uploadLink]),
  cache: new InMemoryCache(),
});

2. 确保服务器端正确配置了Apollo Server的文件上传功能。在Apollo Server的初始化过程中，您需要将ApolloServer的uploads选项设置为false，以启用文件上传。下面是一个示例：

const { ApolloServer } = require('apollo-server');
const { ApolloServerPluginDrainHttpServer } = require('apollo-server-core');
const http = require('http');

const server = new ApolloServer({
  // ...其他配置项
  uploads: false, // 设置为true以启用文件上传
});

const httpServer = http.createServer();
await server.start();
server.applyMiddleware({ app: httpServer });

httpServer.listen({ port: 4000 }, () =>
  console.log(`Server ready at http://localhost:4000${server.graphqlPath}`)
);

3. 确保正确地定义了服务器端的类型定义和解析器。您需要确保在服务器端正确定义了上传文件的类型和解析器。下面是一个示例：

const { GraphQLUpload } = require('graphql-upload');

const resolvers = {
  // ...其他解析器
  Upload: GraphQLUpload, // 定义上传文件的类型
};

4. 确保在客户端正确地构建GraphQL请求。在客户端使用Apollo Client发送GraphQL请求时，您需要使用createUploadLink提供的createUploadMiddleware中间件来处理文件上传。下面是一个示例：

import { ApolloClient, InMemoryCache, createHttpLink } from '@apollo/client';
import { createUploadLink, createUploadMiddleware } from 'apollo-upload-client';

const uploadMiddleware = createUploadMiddleware();
const httpLink = createHttpLink({ uri: '/graphql' });

const client = new ApolloClient({
  link: uploadMiddleware.concat(httpLink),
  cache: new InMemoryCache(),
});

// 使用client发送GraphQL请求

通过检查这些方面，您应该能够解决“Apollo Server从Apollo Upload Client接收到空对象”的问题。