类型干扰失败。预期类型不匹配：在 Kotlin 和 Anko 中找到的必需字符串对 <String,String>

Question

我使用 kotlin 和 anko 库创建了一个数据库。我正在关注这篇文章 https://antonioleiva.com/databases-anko-kotlin/ 我正在尝试使用下面的方法在数据库块中插入数据，但出现错误

Type interference failed. Expected type mismatch: required String found pair

fun insertPerson() {
    database.use {
        insert(PersonTable.Name,
                PersonTable.PersonName to "XX",
                PersonTable.Domain to "Technology",
                PersonTable.MobileNumber to "XXXXX")
    }
}

object PersonTable {
    val Name = "Person"
    val ID = "id"
    val PersonName = "person_name"
    val Domain = "domain"
    val MobileNumber = "mobile_number"
}

build.gradle

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.williams.fourthdemo"
        minSdkVersion 16
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    compile 'com.android.support:appcompat-v7:25.3.1'
    testCompile 'junit:junit:4.12'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile "org.jetbrains.anko:anko-common:0.10.1"
    compile "org.jetbrains.anko:anko-sqlite:0.10.1"
}

Answer 1

Insert 接受 Pair 的方法是扩展函数，可以在这个 file 中找到。 Android 工作室经常找不到这样的方法。所以导入它：

import org.jetbrains.anko.db.Database.insert

或

import org.jetbrains.anko.db.*

类型干扰失败。预期类型不匹配：在 Kotlin 和 Anko 中找到的必需字符串对 <String,String>

Type interference failed. Expected type mismatch: required String found pair<String,String> in Kotlin and Anko

sqlite

android

kotlin

anko

kotlin-android-extensions