不知何故，这个proguard-rules.pro工作。

# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

-dontwarn kotlin.reflect.jvm.internal.**

-keep class kotlin.reflect.jvm.internal.** { *; }

-keep interface javax.annotation.Nullable

# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

# Glide
#-keep public class * implements com.bumptech.glide.module.GlideModule
#-keep public class * extends com.bumptech.glide.module.AppGlideModule

-keepattributes Signature,RuntimeVisibleAnnotations,AnnotationDefault

-keep class com.google.android.gms.** { *; }
-dontwarn com.google.android.gms.*
-keep class com.google.api.client.** {*;}

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

#### OkHttp, Retrofit and Moshi
-dontwarn okhttp3.**
-dontwarn retrofit2.Platform.Java8
-dontwarn okio.**
-dontwarn javax.annotation.**
-keepclasseswithmembers class * {
    @retrofit2.http.* <methods>;
}

-keepclasseswithmembers class * {
    @com.squareup.moshi.* <methods>;
}

-keep @com.squareup.moshi.JsonQualifier interface *

# Enum field names are used by the integrated EnumJsonAdapter.
# values() is synthesized by the Kotlin compiler and is used by EnumJsonAdapter indirectly
# Annotate enums with @JsonClass(generateAdapter = false) to use them with Moshi.
-keepclassmembers @com.squareup.moshi.JsonClass class * extends java.lang.Enum {
    <fields>;
    **[] values();
}

# Keep helper method to avoid R8 optimisation that would keep all Kotlin Metadata when unwanted
-keepclassmembers class com.squareup.moshi.internal.Util {
    private static java.lang.String getKotlinMetadataClassName();
}

-keep class kotlin.Metadata { *; }
-keepclassmembers class kotlin.Metadata {
    public <methods>;
}

-keepclassmembers class * {
    @com.squareup.moshi.FromJson <methods>;
    @com.squareup.moshi.ToJson <methods>;
}

-keepnames @kotlin.Metadata class com.yourpackage.model.**
-keep class com.yourpackage.model.** { *; }
-keepclassmembers class com.yourpackage.model.** { *; }

# 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 generic signature of Call, Response (R8 full mode strips signatures from non-kept items).
-keep,allowobfuscation,allowshrinking interface retrofit2.Call
-keep,allowobfuscation,allowshrinking class retrofit2.Response

# 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

导致ClassCastException的原因，根据我的推断，是缺乏对Moshi的泛型类型的支持。这是我高度挂起的数据类是原因：

@JsonClass(generateAdapter = true)
data class ResponseHttp<T>(
    @field:Json(name = "statusCode") val statusCode: String,
    // this generic type is where went wrong
    @field:Json(name = "data") val data: T?,
)

对我来说，我只有Retrofit，它通过将这些行添加到proguard-rules.pro中解决了我的问题

#ParametrizedType ClassCastException error fix
-keep,allowobfuscation,allowshrinking interface retrofit2.Call
-keep,allowobfuscation,allowshrinking class retrofit2.Response
-keep,allowobfuscation,allowshrinking class kotlin.coroutines.** { *; }

在我的例子中，我包括了每个Kotlin类，因为我在这个包中也使用了超时，Continuation也在这个包中，它是进行转换的，所以，以防万一，我把它都加了进去