Android Project - R cannot be resolved or is not a field———解决方案之一！

最新推荐文章于 2022-04-04 20:39:00 发布
最新推荐文章于 2022-04-04 20:39:00 发布
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文章标签： eclipse android开发 解决方案
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本文链接：https://blog.youkuaiyun.com/lu_android/article/details/52449015
本文介绍了两个常见的Android应用开发中的兼容性问题及其解决方案：一是确保AndroidManifest.xml文件正确配置了minSdkVersion和targetSdkVersion；二是正确导入并使用appcompat_v7库，通过将项目设置为使用该库作为Library来解决兼容性问题。

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情况1、在Android项目中的AndroidManifest.xml中漏掉了红色的部分

<uses-sdk

        android:minSdkVersion="14"

        android:targetSdkVersion="21" />

情况2、appcompat_v7 没有import：

  

      正确过程：

      

      

     每个项目要把appcompat_v7当做它的一个Library：

     

    再次clean--> Build all

     

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最新发布
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