tsc watch命令抛出错误

Question

我正在运行tsc -w -p myfile.ts，并且在阅读打字稿教程时遇到错误。无论文件内容如何，​​错误似乎都会引发。

我的文件：

1 function greeter(person: string) {
2    return "Hello, " + person;
3 }
4
5 const user = "Jane User";
6
7 console.log(greeter(user));

错误：

linkedlist.ts(1,1): error TS1005: '{' expected.
linkedlist.ts(1,1): error TS1327: String literal with double quotes expected.
linkedlist.ts(1,10): error TS1005: ':' expected.
linkedlist.ts(1,10): error TS1328: Property value can only be string literal, numeric literal, 'true', 'false', 'null', object literal or array literal.
linkedlist.ts(1,24): error TS1005: ',' expected.
linkedlist.ts(1,34): error TS1005: ',' expected.
linkedlist.ts(2,5): error TS1327: String literal with double quotes expected.
linkedlist.ts(2,12): error TS1005: ':' expected.
linkedlist.ts(2,12): error TS1328: Property value can only be string literal, numeric literal, 'true', 'false', 'null', object literal or array literal.
linkedlist.ts(2,30): error TS1005: ',' expected.
linkedlist.ts(5,1): error TS1012: Unexpected token.

13:23:59 - Found 11 errors. Watching for file changes.

已修复： ：使用tsconfig.json文件删除错误

Answer 1

您使用哪个版本的TS编译器？这很可能是旧版本。

TypeScript 3.3应该是。检查您的版本： tsc -v

尝试在全球范围内重新安装：

npm uninstall -g typescript

然后：

npm install -g typescript@latest

查看此线程：How to update TypeScript to latest version with npm?