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  • 关于安卓一些报错的解决方法(随时更新)

    1.Program type already present

    依赖包冲突

    All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.1.1, 25.3.0. Examples include com.android.support:animated-vector-drawable:27.1.1 and com.android.support:design:25.3.0 less... (Ctrl+F1) 
    There are some combinations of libraries, or tools and libraries, that are incompatible, or can lead to bugs. One such incompatibility is compiling with a version of the Android support libraries that is not the latest version (or in particular, a version lower than your targetSdkVersion.)

    若按提示加入

    //noinspection GradleCompatible
    

      编译不会出现问题但在调试的时候就会报错

    看提示应该是com.android.support:design版本和com.android.support:appcompat中显示的版本冲突,这时候把design版本置换即可,在dependencies中加入:

    implementation 'com.android.support:design:27.1.1'

    2.Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference

    textview绑定错误,检查xml文件下id或xml文件是否绑定正确

    3.Attempt to invoke interface method 'boolean java.util.List.add(java.lang.Object)' on a null object reference

    原因:定义了 List<E> lists;   但并没有初始化

    解决方法:

    在使用前加入:

    List<E> lists = new ArrayList<>();

    4.Error:Unable to start the daemon process.
    This problem might be caused by incorrect configuration of the daemon.
    For example, an unrecognized jvm option is used.

    解决方法:

    找到gradle.properties文件,将为注释掉的内容更换为:

    org.gradle.jvmargs=-Xmx512m

     然后重启项目

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  • 原文地址:https://www.cnblogs.com/yang12318/p/9027999.html
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