kotlin-dataBinding-error：检查模块类路径是否缺少或冲突的依赖关系

Question

我怎样才能解决这个问题。我不能使这个数据绑定工作，我已经尝试了一切。build.gradle（模块应用程序）

    apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.fusion.alen.ask"
        minSdkVersion 16
        targetSdkVersion 27
        multiDexEnabled true
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
    }
    androidExtensions {
        experimental = true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    dataBinding {
        enabled = true
    }

}

dependencies {
    implementation 'com.android.support:multidex:1.0.3'

    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:animated-vector-drawable:27.1.1'
    implementation 'com.android.support:support-vector-drawable:27.1.1'
    implementation 'com.android.support:customtabs:27.1.1'
    implementation 'com.android.support:cardview-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:recyclerview-v7:27.1.1'

    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}

apply plugin: 'com.google.gms.google-services'
apply plugin: 'kotlin-android-extensions'
repositories {
    mavenCentral()
}

我尝试添加kapt“com.android.dataBinding:compiler:$compiler_version”，但它给了我一个错误。Build.Gradle（模块项目）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext{
        kotlin_version = '1.2.71'
        compiler_version = '3.2.1'
    }
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:4.2.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

<layout xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <data>
        <variable
            name="user"
            type="com.alen.ask.UserModel.User" />
    </data>

    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout_editor_absoluteY="25dp">


        <LinearLayout
            android:id="@+id/profile_box"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:background="@color/primaryColor"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/app_bar">

            <LinearLayout
                android:id="@+id/qff_box"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_weight="5"
                android:orientation="horizontal"
                android:baselineAligned="false">


                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/questions_number"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center"
                        android:textSize="18sp"
                        android:textStyle="bold"
                        **android:text="@{user.questionsNum}"************
                        tools:text="0" />

                </LinearLayout>

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/followers_number"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center"
                        android:textSize="18sp"
                        android:textStyle="bold"
                        **android:text="@{user.followersNum}"************
                        tools:text="0" />

                </LinearLayout>

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/following_number"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="center"
                        android:textSize="18sp"
                        android:textStyle="bold"
                        **android:text="@{user.followingNum}"***********
                        tools:text="0" />

                </LinearLayout>
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/app_bar"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:background="@color/primaryDarkColor"
            android:orientation="horizontal"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <TextView
                android:id="@+id/username_text"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_weight="1"
                **android:text="@{user.name}"**
                android:textColor="@color/primaryTextColor"
                android:textSize="18sp"
                android:layout_marginStart="8dp" />
        </LinearLayout>

    </android.support.constraint.ConstraintLayout>

</layout>

data class User(val name: String,
                val email: String,
                val uid: String,
                val photo: String,
                val postsList: ArrayList<String> = ArrayList(),
                val questionsNum: Int = 0,
                val followersNum: Int = 0,
                val followingNum: Int = 0
                ) 

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        val binding = ProfileFragmentBinding.inflate(inflater, container, false)
        binding.user = user
}

行binding.user=user给了我一个错误：不能访问类'usermodel.user'。检查您的模块类路径是否丢失或冲突的依赖关系我如何解决这个问题，我已经按照数据绑定文档的指示，我不认为我犯了任何错误。我已经尝试过清理和重建项目，但没有奏效。我尝试添加那些“kapt”依赖项，但没有成功....文件->ProjectStructure->Gradle版本:4.10.1，AndroidPlugInversion:3.2.1，KotlinLanguageVersion:1.2，KotlinPlugInversion:1.2.71-Release-Studio3.2-1

谢谢你。

Answer 1

将文件夹UserModel重命名为UserModel，然后清理/重建项目。我也有同样的问题，当设置文件夹的第一个字母为小写时，错误消失了。将来，将camelCase用于文件夹名称，就像用于变量一样。第一个字母上的大写通常用于类。