Android 找不到'；support:supportcompat'；满足版本约束的

我正在使用一个内部库。由于库的原因，我的android gradle构建失败，出现以下问题

Cannot find a version of 'com.android.support:support-compat' that satisfies the version constraints: 

Dependency path 'Project:library:unspecified' --> 'com.firebase:firebase-jobdispatcher:0.8.5' --> 'com.android.support:support-compat:25.0.0'
   Constraint path 'Project:library:unspecified' --> 'com.android.support:support-compat:{strictly 25.0.0}' because of the following reason: debugRuntimeClasspath uses version 25.0.0
   Dependency path 'Project:library:unspecified' --> 'com.github.bumptech.glide:glide:4.9.0' --> 'com.android.support:support-fragment:27.1.1' --> 'com.android.support:support-compat:27.1.1'
   Dependency path 'Project:library:unspecified' --> 'com.github.bumptech.glide:glide:4.9.0' --> 'com.android.support:support-fragment:27.1.1' --> 'com.android.support:support-core-ui:27.1.1' --> 'com.android.support:support-compat:27.1.1'
   Dependency path 'Project:library:unspecified' --> 'com.github.bumptech.glide:glide:4.9.0' --> 'com.android.support:support-fragment:27.1.1' --> 'com.android.support:support-core-utils:27.1.1' --> 'com.android.support:support-compat:27.1.1'
   Dependency path 'Project:library:unspecified' --> 'com.github.bumptech.glide:glide:4.9.0' --> 'com.android.support:animated-vector-drawable:27.1.1' --> 'com.android.support:support-vector-drawable:27.1.1' --> 'com.android.support:support-compat:27.1.1'

早些时候，它正在使用支持库：

implementation 'com.android.support:appcompat-v7:27.1.1'

现在它被移动到androidx：

implementation 'androidx.appcompat:appcompat:1.0.0'

库的build.gradle文件为：

apply plugin: 'com.android.library'
apply plugin: 'com.jfrog.artifactory'
apply plugin: 'maven-publish'

buildscript {
    repositories {
        jcenter()
        google()
        mavenCentral()
    }
    dependencies {
        classpath "org.jfrog.buildinfo:build-info-extractor-gradle:4.9.1"
    }
}

android {
    compileSdkVersion 27
    defaultConfig {
        minSdkVersion 17
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

        buildConfigField "int", "DB_VERSION", "10"
    }
    buildTypes {
        release {
            minifyEnabled false
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    compileOnly 'com.squareup.retrofit2:retrofit:2.4.0'
    compileOnly 'com.squareup.retrofit2:converter-gson:2.4.0'
    compileOnly 'com.squareup.retrofit2:converter-scalars:2.4.0'
    debugImplementation 'com.squareup.okhttp3:logging-interceptor:4.1.0'
    implementation 'com.firebase:firebase-jobdispatcher:0.8.5'
    implementation 'androidx.appcompat:appcompat:1.0.0'
    compileOnly 'com.github.bumptech.glide:glide:4.9.0'
    debugImplementation 'com.facebook.stetho:stetho-okhttp3:1.5.1'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
}

---

你说得对。看到该项目的代码，它似乎会检查您是否正在覆盖项目中的版本（许多依赖项在出现这些问题时开始这样做）。因此，进入您的项目

build.gradle

（而不是

app/build.gradle

），您可以覆盖库正在使用的版本：

buildscript {
    ext {
        ...
        supportLibVersion = "28.0.0"
        ...
    }
}

---

firebase jobdispatcher似乎已弃用，并且不会收到其依赖项的任何更新。查看他们的迁移指南：

firebase jobdispatcher

已被弃用。尝试将其迁移到

WorkManager

。检查：现在是迁移的时候了，请使用此迁移androidx进行检查