Realease package appears – missing type parameter

The project uses gson, Used in parsing
Type listType = new TypeToken<>(){}.getType();
When using debug There is no problem with network requests when packets are sent , But there was a problem when the project was packaged and run on the real machine , Unable to access the data in the background , Log printing –missing type parameter, This is due to confusion , Solution ： stay proguard.txt Add the following statement to

-keep class com.google.gson.** {*;}

-dontobfuscate
-dontoptimize

Close test available