Android studio 3.0上进行多渠道打包遇到的问题

Error:All flavors must now belong to a named flavor dimension. The flavor 'xiaomi' is not assigned to a flavor dimension. Learn more at https://d.android.com/r/tools/flavorDimensions-missing-error-message.html

Android studio 3.0上进行多渠道打包时编译时出现这个错误

多渠道打包参考：http://blog.csdn.net/mynameishuangshuai/article/details/51783303

解决问题参考：https://stackoverflow.com/questions/44105127/android-studio-3-0-flavor-dimension-issue

多渠道打包的细节我就不说了，参考网络上的，或者我上面的这个链接就好，下面给出一下我修改的代码（如果有其他的改法也希望能多多交流）

flavorDimensions "default"
    productFlavors {
        kuan {
            dimension "default"
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "kuan"]
        }
        xiaomi {
            dimension "default"
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "xiaomi"]
        }
        qh360 {
            dimension "default"
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "qh360"]
        }
        baidu {
            dimension "default"
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "baidu"]
        }
        wandoujia {
            dimension "default"
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "wandoujia"]
        }
    }

或者：

flavorDimensions "default"
    productFlavors {
        kuan {dimension "default"}
        xiaomi {dimension "default"}
        qh360 {dimension "default"}
        baidu {dimension "default"}
        wandoujia {dimension "default"}
    }

    productFlavors.all {
        flavor -> flavor.manifestPlaceholders = [UMENG_CHANNEL_VALUE: name]
    }

然后解决问题之后我又去官网查阅了一下，地址如下：

https://developer.android.com/studio/build/build-variants.html#flavor-dimensions

根据官网说法：

You must assign each product flavor you configure to one of the flavor dimensions.

你必须指定一种 flavor dimensions

void flavorDimensions(String... dimensions)

flavorDimensions 后面可以添加多个不同类型的参数例如：

flavorDimensions "api", "mode"

接下来的使用对应起来就好了：

productFlavors {
    demo {
      // Assigns this product flavor to the "mode" flavor dimension.
      dimension "mode"
      ...
    }

    full {
      dimension "mode"
      ...
    }

    // Configurations in the "api" product flavors override those in "mode"
    // flavors and the defaultConfig {} block. Gradle determines the priority
    // between flavor dimensions based on the order in which they appear next
    // to the flavorDimensions property above--the first dimension has a higher
    // priority than the second, and so on.
    minApi24 {
      dimension "api"
      minSdkVersion '24'
      // To ensure the target device receives the version of the app with
      // the highest compatible API level, assign version codes in increasing
      // value with API level. To learn more about assigning version codes to
      // support app updates and uploading to Google Play, read Multiple APK Support
      versionCode 30000 + android.defaultConfig.versionCode
      versionNameSuffix "-minApi24"
      ...
    }

    minApi23 {
      dimension "api"
      minSdkVersion '23'
      versionCode 20000  + android.defaultConfig.versionCode
      versionNameSuffix "-minApi23"
      ...
    }

    minApi21 {
      dimension "api"
      minSdkVersion '21'
      versionCode 10000  + android.defaultConfig.versionCode
      versionNameSuffix "-minApi21"
      ...
    }
  }

好了，这就是官方给出的gradle多渠道打包的方式