无法在styles.xml (Android Studio) 中解析符号“主题" [英] Cannot resolve symbol 'Theme' in styles.xml (Android Studio)

问题描述

从今天开始，Android Studio 无法在styles.xml 中找到AppCompat 主题，但例如代码中的AppCompatActivity 确实得到了识别.我的 Android Studio 版本是 2.2.2，Build #AI-145.3360264

Since today, Android Studio can't find the AppCompat themes in styles.xml, but for example AppCompatActivity in code does get recognized. My Android Studio version is 2.2.2, Build #AI-145.3360264

我已经尝试升级到最新的构建工具、编译 sdk (25) 版本等，但没有解决问题.

I already tried upgrading to the latest build tools, compile sdk (25) version etc. but it didn't fix the problem.

目前我已经安装了以下内容(来自 sdk 管理器):

At the moment I have installed the following (from sdk manager):

• android api:19 和 23
• sdk 平台工具:25.0.1
• sdk 工具:25.2.3
• 构建工具:23.0.2 和 25.0.1
• 支持存储库:40
• 谷歌存储库:39

以及其他一些，不必在此处列出.

and a few others, that shouldn't be necessary to list here.

应用的build.gradle:

build.gradle of app:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion '25.0.1'
    defaultConfig {
        applicationId "xxx.xxxxxxxx.xxxxxxxxx" //not the real applicationId
        minSdkVersion 14
        targetSdkVersion 19
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {

        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile files('libs/RootTools.jar')
    compile 'com.android.support:support-v4:23.+'
    compile 'com.android.support:support-v13:23.+'
    compile 'com.android.support:appcompat-v7:23.+'
    compile 'com.android.support:design:23.+'
    compile 'com.android.support:cardview-v7:23.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
    compile 'de.hdodenhof:circleimageview:2.1.0'
}

推荐答案

另一个适用于 Android Studio 3.1.2 的解决方案:

Another solution that worked for me with Android Studio 3.1.2:

如果有的话，从 build.gradle 中删除它们:

delete these from build.gradle if you have them:

'com.android.support:appcompat-v7:27.1.1''com.android.support:design:27.1.1'

然后同步，然后撤消删除，然后再次同步.

then sync, then undo delete, then sync again.

这篇关于无法在styles.xml (Android Studio) 中解析符号“主题"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！