Question

在更新Eclipse（Help -> Check for Updates）和Android-SDK-Manager之后，嘿伙计们总是得到“......无法解析为某种类型”或“......无法解析为变量”消息。我在已经创建的每个项目以及新项目上都会收到此错误消息。

我已经尝试过这些东西，但没有一个能为我效劳：

Project -> Clean...
Right click at the project -> Properties -> Java Build Path -> Libraries -> Add Library... -> JRE System Library my apps dont run after update eclipse & adt
Window -> Preferences -> Java -> Compiler -> Building -> [x] Rebuild class files modified by others

所有这三个步骤都没有解决这些错误消息......也许其他人知道该怎么做？重新安装Eclipse应该是最后一个选项......它总是让我永远地将Eclipse与GitHub连接起来：（

示例代码：

package com.example.test;

import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

错误讯息：

ActionBarActivity cannot be resolved to a type  MainActivity.java   /TestProject/src/com/example/test   line 7  Java Problem
ActionBarActivity cannot be resolved to a type  MainActivity.java   /TestProject/src/com/example/test   line 11 Java Problem
ActionBarActivity cannot be resolved to a type  MainActivity.java   /TestProject/src/com/example/test   line 31 Java Problem
error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.   styles.xml  /TestProject/res/values-v14 line 8  Android AAPT Problem
error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'. styles.xml  /TestProject/res/values line 7  Android AAPT Problem
error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'. styles.xml  /TestProject/res/values-v11 line 7  Android AAPT Problem
R cannot be resolved to a variable  MainActivity.java   /TestProject/src/com/example/test   line 12 Java Problem
R cannot be resolved to a variable  MainActivity.java   /TestProject/src/com/example/test   line 18 Java Problem
R cannot be resolved to a variable  MainActivity.java   /TestProject/src/com/example/test   line 28 Java Problem
The method getMenuInflater() is undefined for the type MainActivity MainActivity.java   /TestProject/src/com/example/test   line 18 Java Problem
The method onCreate(Bundle) of type MainActivity must override or implement a supertype method  MainActivity.java   /TestProject/src/com/example/test   line 10 Java Problem
The method onCreateOptionsMenu(Menu) of type MainActivity must override or implement a supertype method MainActivity.java   /TestProject/src/com/example/test   line 16 Java Problem
The method onOptionsItemSelected(MenuItem) of type MainActivity must override or implement a supertype method   MainActivity.java   /TestProject/src/com/example/test   line 23 Java Problem

Answer 1

很抱歉，我无法对此发表评论，但我不具备这样做的声誉。尝试去窗口 - ＆gt;显示视图 - ＆gt;问题。

它应该显示所有与eclipse相关的问题以及代码的问题。如果有任何与日食相关的问题，你可以发布它们吗？我知道android-eclipse包有问题 - 我最终不得不下载32位库，即使我使用的是64位操作系统。它之后立即起作用，所有这一切都是检查问题视图。

其次，如果您尝试过项目 - ＆gt;干净，并没有解决它，那么它可能与被删除的自动文件生成文件无关，如appcompat_v7文件夹，因为它将在清理时重新生成。这很可能是一个缺少库的问题。

请发布此操作的结果。

Answer 2

@ridvanzoro Deleting the appcompat_v7 folder fixed the problem for new projects. I now can try to remove all of my old projects and import them. Thanks :)

你不需要删除appcompat_v7，这个文件夹里面有很好的xml文件，动画，你可能想要使用它们。要从项目中更改或删除appcompat_v7文件夹，

Right click at project->Build Path->Configure Build Path->Lİbraries Tab->Android Dependencies

Eclipse（Android）：无法解析为类型/变量等

2 个答案: