flutter 多渠道打包 不同环境不同包名 product flavors flavorDimensions_flutter build apk flavor dimension

问题：

All flavors must now belong to a named flavor dimension.

所有口味现在必须属于一个命名的风味维度。

解决参考 如下：

    flavorDimensions('flavorDimensions1', 'flavorDimensions2')
    productFlavors  {
        version1 {
            dimension 'flavorDimensions1'
            applicationId "com.company.version1"
            resValue "string", "app_name", "version1"
            manifestPlaceholders = [CHANNEL_VALUE: "version1"
                                    ,app_icon   : "@mipmap/ic_launcher"]
        }
        version2 {
            dimension 'flavorDimensions2'
            applicationId "com.company.version2"
            resValue "string", "app_name", "version2"
            manifestPlaceholders = [CHANNEL_VALUE: "version2",
                                    app_icon   : "@mipmap/ic_launcher