android – 无法使用Butterknife 8.1.0注入视图

在项目级别模块中：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0'
        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

在模块级别

apply plugin: 'com.android.application'
apply plugin: 'android-apt'

android {
    compileSdkVersion 23
    buildToolsversion "23.0.2"

    defaultConfig {
        applicationId "com.id.myprojectid"
        minSdkVersion 11
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'
        }
    }
    useLibrary 'org.apache.http.legacy'
}


dependencies {
    compile filetree(dir: 'libs',include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.3.0'
    compile 'com.android.support:design:23.3.0'
    compile files('libs/libphonenumber-7.0.4.jar')
    compile files('libs/universal-image-loader-1.9.5.jar')
    compile files('libs/httpmime-4.1.jar')
    compile 'com.google.android.gms:play-services:8.4.0'
    compile 'com.android.support:recyclerview-v7:23.1.1'
    compile 'com.google.android.gms:play-services-analytics:7.3.0'
    compile 'com.android.support:multidex:1.0.0'
    compile 'com.jakewharton:butterknife:8.2.1'
    apt 'com.jakewharton:butterknife-compiler:8.0.1'
    compile 'com.mcxiaoke.volley:library:1.0.19'

}

内部活动

@BindView(R.id.et_password) EditText et_password;
    @BindView(R.id.et_fullname)  EditText etFullname;
    @BindView(R.id.et_email) EditText etEmail;
    @BindView(R.id.et_contact) EditText et_contact;
    @BindView(R.id.et_refer)  EditText et_referId;
    @BindView(R.id.cbPasswordVisible) CheckBox checkBox;


protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_signup);
        ButterKnife.bind(this);
}

但是,当我运行我的应用程序时,我收到以下错误消息.

Error:(20,32) error: method castView in enum Finder cannot be applied to given types;
required: View,int,String,Class<T>
found: View,String
reason: cannot instantiate from arguments because actual and formal argument lists differ in length
where T is a type-variable:
T extends Object declared in method <T>castView(View,Class<T>)
Error:(22,31) error: method castView in enum Finder cannot be applied to given types;
required: View,Class<T>)

谁能告诉我在这里缺少什么？