使用Retrofit2解析JSON数据时遇问题，求排查帮助

Hey folks, I've been banging my head against a wall with this Retrofit2 problem for hours—days, even. I'm trying to fetch and parse JSON data in my Android app, but every time I run it, the error messages keep pointing to issues in my ApiService.java and MainActivity.java files.

I've included the code for both files below, but if anyone needs the full source code to get a better picture of what's going on, I can upload that no problem. I've tried everything I can think of and still can't fix this, so any help or guidance would be absolutely amazing.

ApiService.java #

// Paste your ApiService code here

MainActivity.java #

// Paste your MainActivity code here

内容的提问来源于stack exchange，提问作者Čika Tuna