Question

我正在使用Visual Studio Code for Java，并且想在使用库时调试代码。但是，每当我开始调试时，都会出现以下错误：

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    IO cannot be resolved
    IO cannot be resolved
    IO cannot be resolved

    at TestClass.main(TestClass.java:6)

例如，带有以下代码：

import AlgoTools.IO;

public class TestClass {
    public static void main(String[] args) {
        int a, b;
        a = IO.readInt("Please enter a number ");
        b = IO.readInt("Please enter another number ");

        IO.println("Your number is: " + (a + b));
    }
}

但是，当我使用javac <Filename>在cmd或PowerShell中编译我的代码并使用java <Classname>运行它时，它可以正常工作。当我尝试在Visual Studio Code中进行调试时，只会收到错误消息。

我还应该提到，我在CLASSPATH中将路径添加到了.jar库中。

我正在使用默认的“启动”调试配置：

{
    "type": "java",
    "name": "Debug (Launch)",
    "request": "launch",
    "cwd": "${workspaceFolder}",
    "console": "internalConsole",
    "stopOnEntry": false,
    "mainClass": "",
    "args": ""
},

Answer 1

您应该安装一个名为“ java extension pack”和java maven的扩展。或安装该离线扩展程序。click here and get extension name

扩展名URL：https://marketplace.visualstudio.com/_apis/public/gallery/publishers/vscjava/vsextensions/vscode-java-pack/0.4.0/vspackage

Visual Studio代码导入库

1 个答案: