错误:找不到符号类Android Studio

此错误在更新Mac OS X或系统后发生(我不知道).

This error hapens after update mac osx or system (I don't know).

在我打开项目之后，我很早就关闭了.

It was after I open project that I closed one weak ago.

我的settings.gradles是:

My settings.gradles is:

include ':app' , ':api', ':daogenerator'
project(':mobilneapi').projectDir = new File("/Users/AndroidstudioProjects/Modules/api")
project(':daogenerator').projectDir = new File("/Users/AndroidstudioProjects/Modules/daogenerator")

我的应用程序成功了

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        applicationId "pl.wm.myapplication"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile project(':api')
    compile project(':daogenerator')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.0.1'
}

当我在Main Project中将导入添加到MainActivity中时.编译后出现错误:

When I add import into MainActivity in Main Project. I have got error after compile:

错误:(6，24)错误:找不到符号类缓存

Error:(6, 24) error: cannot find symbol class Cache

怎么了?

gradle构建工具1.3.0和1.2.4出现相同的错误

The same error on gradle build tools 1.3.0 and 1.2.4