The Crashlytics build ID is missing. This occurs when the Crashlytics Gradle plugin is missing from your app's build configuration.

[Kola-Chao]

使用新版本的firebasebom集成了,不实用andResGuard是可以正常使用的（也就是配置都是正常的）
参考whitlist配置了andResGuard
andResGuard {
// mappingFile = file("./resource_mapping.txt")
mappingFile = null
// use7zip = true
// useSign = true
// 打开这个开关，会keep住所有资源的原始路径，只混淆资源的名字
keepRoot = true
whiteList = [
//https://github.com/shwenzhang/AndResGuard/blob/master/doc/white_list.md
// for your icon
"R.drawable.icon",
// for fabric
"R.string.com.crashlytics.*",
// for google-services
"R.string.google_app_id",
"R.string.gcm_defaultSenderId",
"R.string.default_web_client_id",
"R.string.ga_trackingId",
"R.string.firebase_database_url",
"R.string.google_api_key",
"R.string.google_crash_reporting_api_key",
"R.string.project_id",
"R.string.storage_bucket",
"R.string.google_storage_bucket",
"R.string.fcm_fallback_notification_channel_label",
// for firebase crashytics
"R.bool.com.crashlytics.useFirebaseAppId",
"R.string.com.crashlytics.useFirebaseAppId",
"R.string.google_app_id",
"R.bool.com.crashlytics.CollectDeviceIdentifiers",
"R.string.com.crashlytics.CollectDeviceIdentifiers",
"R.bool.com.crashlytics.CollectUserIdentifiers",
"R.string.com.crashlytics.CollectUserIdentifiers",
"R.string.com.crashlytics.ApiEndpoint",
"R.string.io.fabric.android.build_id",
"R.string.com.crashlytics.android.build_id",
"R.bool.com.crashlytics.RequireBuildId",
"R.string.com.crashlytics.RequireBuildId",
"R.bool.com.crashlytics.CollectCustomLogs",
"R.string.com.crashlytics.CollectCustomLogs",
"R.bool.com.crashlytics.Trace",
"R.string.com.crashlytics.Trace",
"R.string.com.crashlytics.CollectCustomKeys",

        //other
        "R.font.*",
        "R.id.constraint*",
        "R.string.tt_request_permission_*",
        "R.id.mtrl_*",
        "R.string.res_*",
        "R.bool.res_*",
        "R.id.res_*",
        "R.string.common_google_*",

]
// 设置这个值，会把arsc name列混淆成相同的名字，减少string常量池的大小

// fixedResName = "arg"
// 打开这个开关会合并所有哈希值相同的资源，但请不要过度依赖这个功能去除去冗余资源
mergeDuplicatedRes = false
compressFilePattern = [
".png",
".jpg",
".jpeg",
".gif",
]
// sevenzip {
// artifact = 'com.tencent.mm:SevenZip:1.2.21'
// //path = "/usr/local/bin/7za"
// }

/**
 * 可选： 如果不设置则会默认覆盖assemble输出的apk
 **/
// finalApkBackupPath = "${project.rootDir}/final.apk"

/**
 * 可选: 指定v1签名时生成jar文件的摘要算法
 * 默认值为“SHA-1”
 **/
// digestalg = "SHA-256"

}
运行后报错：The Crashlytics build ID is missing. This occurs when the Crashlytics Gradle plugin is missing from your app's build configuration.