背景原因是需要更新谷歌services 和 recaptcha包，这又必须先升级AGP到8.x以上才行

buildscript {
    repositories {
        ...
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:8.1.0'
        classpath 'com.google.gms:google-services:4.4.2'
        ...
    }
}

综合参考文章:
https://blog.csdn.net/s894792409/article/details/136945308
https://blog.csdn.net/qq_37324563/article/details/140461119

先说个粗暴的方法，项目根目录gradle.properties文件里面配置如下设置直接关闭R8混淆器的全模式即可解决

android.enableR8.fullMode=false

但是随着版本的提升应该还是需要精确解决下，也是为了知晓问题的详细原因，因此非粗暴的如下↓

1.其中 Gson 数据转换报错如下：

Fatal Exception: java.lang.RuntimeException
  Missing type parameter.
    com.google.gson.reflect.TypeToken.getSuperclassTypeParameter (TypeToken.java:84)
    com.google.gson.reflect.TypeToken.<init> (TypeToken.java:62)

报错信息看起来是泛型类型的问题，各种百度、谷歌查找，最后还是在 gson 库的 issue 里面回答找到新的混淆规则

# Retain generic signatures of TypeToken and its subclasses with R8 version 3.0 and higher.
-keep,allowobfuscation,allowshrinking class com.google.gson.reflect.TypeToken
-keep,allowobfuscation,allowshrinking class * extends com.google.gson.reflect.TypeToken
或
-keep class com.google.gson.reflect.TypeToken
-keep class * extends com.google.gson.reflect.TypeToken
-keep public class * implements java.lang.reflect.Type

2.针对Retrofit2的新混淆规则如下：

## ---------Retrofit混淆方法---------------
-dontwarn javax.annotation.**
-dontwarn javax.inject.**
# OkHttp3
-dontwarn okhttp3.logging.**
-keep class okhttp3.internal.**{*;}
-dontwarn okio.**
# Retrofit
-dontwarn retrofit2.**
-keep class retrofit2.** { *; }
-keepattributes Signature
-keepattributes Exceptions

# Retrofit does reflection on generic parameters. InnerClasses is required to use Signature and
# EnclosingMethod is required to use InnerClasses.
-keepattributes Signature, InnerClasses, EnclosingMethod

# Retrofit does reflection on method and parameter annotations.
-keepattributes RuntimeVisibleAnnotations, RuntimeVisibleParameterAnnotations

# Keep annotation default values (e.g., retrofit2.http.Field.encoded).
-keepattributes AnnotationDefault

# Retain service method parameters when optimizing.
-keepclassmembers,allowshrinking,allowobfuscation interface * {
    @retrofit2.http.* <methods>;
}

# Ignore annotation used for build tooling.
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

# Ignore JSR 305 annotations for embedding nullability information.
-dontwarn javax.annotation.**

# Guarded by a NoClassDefFoundError try/catch and only used when on the classpath.
-dontwarn kotlin.Unit

# Top-level functions that can only be used by Kotlin.
-dontwarn retrofit2.KotlinExtensions
-dontwarn retrofit2.KotlinExtensions$*

# With R8 full mode, it sees no subtypes of Retrofit interfaces since they are created with a Proxy
# and replaces all potential values with null. Explicitly keeping the interfaces prevents this.
-if interface * { @retrofit2.http.* <methods>; }
-keep,allowobfuscation interface <1>

# Keep inherited services.
-if interface * { @retrofit2.http.* <methods>; }
-keep,allowobfuscation interface * extends <1>

# With R8 full mode generic signatures are stripped for classes that are not
# kept. Suspend functions are wrapped in continuations where the type argument
# is used.
-keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation

# R8 full mode strips generic signatures from return types if not kept.
-if interface * { @retrofit2.http.* public *** *(...); }
-keep,allowoptimization,allowshrinking,allowobfuscation class <3>

# With R8 full mode generic signatures are stripped for classes that are not kept.
-keep,allowobfuscation,allowshrinking class retrofit2.Response

Game Over!