我有一个ApolloServer项目,它给我带来了麻烦,所以我想我可能会更新它,但在使用最新的Babel时遇到了问题。我的index.js是:
require('dotenv').config()
import {startServer} from './server'
startServer()
当我运行它时,我得到了错误
SyntaxError: Cannot use import statement outside a module
首先,我试图说服TPTB*这是一个模块(没有成功)。所以我把“import”改成了“require”,这就成功了。
但现在我在其他文件中有大约24个“导入”给我同样的错误。
*我敢肯定我问题的根源是我甚至不知道抱怨的是什么。我有点假设它是巴别塔7(因为我来自巴别塔6,我不得不改变预设),但我不是100%确定。
我发现的大多数解决方案似乎并不适用于直节点。比如这个:
ES6模块导入给出“未捕获SyntaxError:意外标识符”
说它是通过添加“type=module”来解决的,但这通常会在HTML中,其中我没有。我也尝试使用我的项目的旧预设:
"presets": ["es2015", "stage-2"],
"plugins": []
但这又给了我另一个错误:“错误:插件/预设文件不允许导出对象,只能导出函数。”
以下是我开始时的依赖关系:
"dependencies": {
"@babel/polyfill": "^7.6.0",
"apollo-link-error": "^1.1.12",
"apollo-link-http": "^1.5.16",
"apollo-server": "^2.9.6",
"babel-preset-es2015": "^6.24.1",
节点v14.16.0
对于那些尝试过。mjs的人来说:
Aviator@AW:/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex$ node just_js.mjs
file:///mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex/just_js.mjs:3
import fetch from "node-fetch";
^^^^^
SyntaxError: Unexpected identifier
谁试过从"node-fetch"导入取回;
谁试过const fetch = require('node-fetch');
Aviator@AW:/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex$ node just_js.js
(node:4899) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex/just_js.js:3
import fetch from "node-fetch";
^^^^^^
SyntaxError: Cannot use import statement outside a module
那些尝试过"type": "module"来打包的人。Json,但继续看到错误,
{
"name": "test",
"version": "1.0.0",
"description": "to get fetch working",
"main": "just_js.js",
"type": "module",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "MIT"
}
我可以毫无问题地切换到axios。
从'axios'导入axios;<——置于文件顶部。
例子:
axios.get('https://www.w3schools.com/xml/note.xml').then(resp => {
console.log(resp.data);
});
节点v14.16.0
对于那些尝试过。mjs的人来说:
Aviator@AW:/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex$ node just_js.mjs
file:///mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex/just_js.mjs:3
import fetch from "node-fetch";
^^^^^
SyntaxError: Unexpected identifier
谁试过从"node-fetch"导入取回;
谁试过const fetch = require('node-fetch');
Aviator@AW:/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex$ node just_js.js
(node:4899) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/mnt/c/Users/Adrian/Desktop/Programming/nodejs_ex/just_js.js:3
import fetch from "node-fetch";
^^^^^^
SyntaxError: Cannot use import statement outside a module
那些尝试过"type": "module"来打包的人。Json,但继续看到错误,
{
"name": "test",
"version": "1.0.0",
"description": "to get fetch working",
"main": "just_js.js",
"type": "module",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "MIT"
}
我可以毫无问题地切换到axios。
从'axios'导入axios;<——置于文件顶部。
例子:
axios.get('https://www.w3schools.com/xml/note.xml').then(resp => {
console.log(resp.data);
});