找不到类（JNI检测到应用程序中的错误）

Question

使用程序时，当您输入某个类时，将关闭程序并输出此错误。 这是我的摇篮。

此gradle属于我的图书馆

apply plugin: 'com.android.library'

repositories {
   maven { url "http://dl.bintray.com/populov/maven" }
mavenCentral()
flatDir {
    dirs 'libs'
}
}

android {
publishNonDefault true
packagingOptions {
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/NOTICE.txt'
}
lintOptions {
    abortOnError false
}

compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion

defaultConfig {
    multiDexEnabled true
    minSdkVersion rootProject.ext.minSdkVersion
    targetSdkVersion rootProject.ext.targetSdkVersion
    versionCode rootProject.ext.vpnSdkVersionCode
    versionName rootProject.ext.vpnSdkVersionName
    consumerProguardFiles 'proguard-rules.pro'
    buildConfigField "String", "BASE_API_URL", "\"https://qamobileapi.privatewifi.com/\""

    externalNativeBuild {
        cmake {
            cppFlags ""
            arguments "-DANDROID_PLATFORM=android-22"
            // https://developer.android.com/ndk/guides/cmake.html
        }
    }

    ndk {
        // https://developer.android.com/ndk/guides/abis.html#sa
        abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
    }

}
externalNativeBuild {
    cmake {
        path "CMakeLists.txt"
    }
}
buildTypes {
    debug {
        debuggable true
    }
    qa {
        debuggable true
        minifyEnabled false
        matchingFallbacks = ['debug', 'release']
    }
    release {
        debuggable true
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        buildConfigField "String", "BASE_API_URL", "\"https://mobileapi.privatewifi.com/\""
    }
    debugRelease {
        debuggable true
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        matchingFallbacks = ['release']
    }
}
 }

 dependencies {
implementation rootProject.ext.appcompatVersion
//implementation files('libs/commons-io-1.3.2.jar')
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.11.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
implementation 'com.google.code.gson:gson:2.8.5'
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.squareup.okio:okio:2.4.1'
implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.3.50'
implementation 'junit:junit:4.11'
implementation 'commons-io:commons-io:1.3.2'

implementation files('libs\\multidex-1.0.3.aar')
implementation files('libs\\okhttp-urlconnection-1.6.0.jar')
implementation files('libs\\rxjava-2.2.12.jar')
implementation files('libs\\rxandroid-2.1.1-sources.jar')
implementation files('libs\\adapter-rxjava-2.4.0.jar')
implementation files('libs\\retrofit2-rxjava2-adapter-1.0.0.jar')
implementation files('libs\\reactive-streams-1.0.3.jar')
}

task copyAAR(type: Copy) {
from('build/outputs/aar')
into('../pwfsdkclientsample/libs')
include(project.name + '-release.aar')
}

上面的代码是指发生偏离的模块之一。

我不知道问题是什么。在代码中，您可以看到我要连接到multiDex的内容。感谢您的帮助。