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报错:Multiple dex files define Landroid/support/v4/app/Watson$OnCreateOptionsMenListener
问题:在运行程序时,报错,看看logcat的内容: [2016-03-01 11:02:10 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/app/WatsonOnCreateOptionsMenuListener;[2016−03−0111:02:10−GuangZhouShe原创 2016-03-01 11:14:43 · 1030 阅读 · 0 评论 -
android开发:报错 app\src\main\res\values\ids.xml: Error: Unsupported node 'item'
情景 在android studio 修改一个类变量type名字,比如 name,输入android studio快捷键Shift+Alit_R进行全局修改,然后在编译项目的时候出现项目错误:Error:Execution failed for task ':app:mergeDebugResources'.> D:\AndroidStudioProjects\consumption...原创 2018-05-27 16:36:07 · 8270 阅读 · 1 评论 -
Android开发:使用ftp服务下传图片功能,在FTPClient的listFiles()方法阻塞
场景:程序运行到 FTPClient.listFiles()或者FTPClient.retrieveFile()方法时,就停止在那里,什么反应都没有,出现假死状态。 解决: 在调用FTPClient.listFiles()方法前,先调用FTPClient.enterLocalPassiveMode();就可以了。资料来源: FTPClient的listFiles()方法阻塞...转载 2018-03-24 10:39:41 · 1311 阅读 · 0 评论 -
Android开发:Android Studio工具遇到的坑,以及解决办法
场景打开a s工程项目,报错:Could not find method android() for arguments Error:(31, 0) Could not find method android() for arguments [build_4g5zqa4pkpj6q6qii8a22khzz$_run_closure2@7a96d128] on root project 'Mybaby原创 2017-09-23 11:25:06 · 5003 阅读 · 0 评论 -
android开发:报错 No message body writer has been found for class java.util.HashMap, ContentType: */*
场景:安卓端网络请求一个后台服务器,返回一下信息500 internal server errorNo message body writer has been found for class java.util.HashMap, ContentType: */*原因:后台服务器返回数据格式有问题 解决:修改后台返回数据格式,比如:response.setCharacterEncoding("U原创 2017-10-12 19:17:45 · 1494 阅读 · 0 评论 -
react-native开发:运行react-native run-ios报错--Print: Entry, ":CFBundleIdentifier", Does Not Exist
情景在新创建的ReactNative项目,运行命令:react-native init Hello 在项目文件夹下执行react-native run-ios,但是出现以下报错:Command /bin/sh failed with exit code 1** BUILD FAILED **The following build commands failed: PhaseScriptE转载 2017-09-02 12:59:18 · 3592 阅读 · 0 评论 -
android开发:The method getSupportFragmentManager() is undefined for the type
问题出现情景: 代码如下:getSupportFragmentManager().beginTransaction().add(R.id.fragment, fragment).hide(fragment).commit();出现了“The method getSupportFragmentManager() is undefined”错误。解决方法:需要实例化的activity必须 exten转载 2017-07-29 11:19:42 · 485 阅读 · 0 评论 -
Android开发:android studio启动后,报错:Could not find com.android.tools.build:gradle
问题情景安装android studio工具后,导入项目,结果报错:Error:Could not find com.android.tools.build:gradle:2.10.1.Searched in the following locations: file:/D:/Android/Android Studio/gradle/m2repository/com/android/to原创 2017-04-15 23:36:17 · 6932 阅读 · 0 评论 -
react-native开发:创建项目报错:Command `npm install --save --save-exact react-native` failed.
现象:D:\react-native>react-native init MyReactNativeAppThis will walk you through creating a new React Native project in D:\react-native\MyReactNativeApp'yarn' �����ڲ����ⲿ���Ҳ���ǿ����еij����������ļ转载 2017-01-17 15:54:33 · 19622 阅读 · 2 评论 -
Android开发:创建项目后报错,com.android.ide.common.process.ProcessException: Failed to execute aapt
情景:创建项目后报错com.android.ide.common.process.ProcessException: Failed to execute aapt原因:在build.gradle文件中,compileSdkVersion 和buildToolsVersion 不匹配解决:匹配 compileSdkVersion 和buildT转载 2017-02-04 11:37:55 · 36463 阅读 · 1 评论 -
android开发:release打包Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'.
情景项目进行release打包,结果报错:Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'.> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate...原创 2018-08-31 11:31:49 · 1638 阅读 · 0 评论