构建时出现简单的app错误

时间:2014-07-23 23:01:40

标签: android android-fragments

我正在尝试创建一个只显示片段的非常简单的程序,但每次尝试构建应用程序时都会收到错误

这是错误

Error:Execution failed for task ':app:dexDebug'.
  

com.android.ide.common.internal.LoggedErrorException:无法运行命令:       C:\ Users \ user2435 \ Android Studio \ sdk \ build-tools \ 19.1.0 \ dx.bat --dex --num-threads = 4 --output C:\ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ dex \ debug C:\ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ classes \ debug C:\ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ dependency-cache \ debug C: \ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ pre-dexed \ debug \ android-support-v4-0c4016dfc8794ad67faea3f8cc8fd3b23877990c.jar C:\ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ pre-dexed \ debug \ classes-246e6497d26ce8d821cff4be0c3f291182761f73.jar C:\ Users \ user2435 \ AndroidStudioProjects \ TheSingleFragment \ app \ build \ intermediates \ pre-dexed \ debug \ support-v4-19.1.0-2cb0dcfa5e76d3d31cbc2cb35eb1e5ce1cc3a125.jar   错误代码:       2   输出:       意外的顶级例外情况:       com.android.dex.DexException:多个dex文件定义了Landroid / support / v4 / accessibilityservice / AccessibilityServiceInfoCompat $ AccessibilityServiceInfoVersionImpl;           在com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)           在com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)           在com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)           在com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)           在com.android.dx.merge.DexMerger.merge(DexMerger.java:188)           在com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)           在com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)           在com.android.dx.command.dexer.Main.run(Main.java:230)           在com.android.dx.command.dexer.Main.main(Main.java:199)           在com.android.dx.command.Main.main(Main.java:103)

以下是活动:

    package com.whosaidthat.endos.thesinglefragment;

import android.app.Activity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;


public class MyActivity extends ActionBarActivity {


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

        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        MyFragment myFragment = new MyFragment();
        fragmentTransaction.add(R.id.fragmentContainer, myFragment);
        fragmentTransaction.commit();


    }




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

这是应该显示的片段

  package com.whosaidthat.endos.thesinglefragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * Created by user2435 on 23/07/2014.
 */
public class MyFragment extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_single, container, false);
    }
}

为什么会发生这种情况的任何想法,我试图用我的nexus 7设备进行测试。 如果它有帮助,我还将我的sdk文件夹中的支持.jar文件添加到libs文件夹中,因为我被告知我需要这样做才能使用支持文件

由于

1 个答案:

答案 0 :(得分:2)

尝试构建>清洁项目。
如果这不起作用,请转到项目文件夹中的.iml(app.iml)文件,并检查支持库是否有任何重复...例如:

<orderEntry type="library" exported="" name="support-v4-19.1.0" level="project" />


如果存在重复(或类似的看起来......可能是不同的版本),请删除其中一行,然后执行干净重建。

如果你没有看到重复,我不知道给出的信息是什么问题。

祝你好运!