Unit 5: Connect to the internet find a writing error

[yangxian9449]

URL of codelab:
https://developer.android.com/codelabs/basic-android-kotlin-compose-add-repository?hl=zh-cn&continue=https%3A%2F%2Fdeveloper.android.com%2Fcourses%2Fpathways%2Fandroid-basics-compose-unit-5-pathway-2%3Fhl%3Dzh-cn%23codelab-https%3A%2F%2Fdeveloper.android.com%2Fcodelabs%2Fbasic-android-kotlin-compose-add-repository#5

Specify the language of the codelab if it is not English:
Chinese

In which task and step of the codelab can this issue be found?
the second step Add repository and Manual Dependency Injection
6. Add repository to ViewModel

Describe the problem
Writing error

MarsPhotosApp.kt not in theme packege, but it said "theme/MarsPhotosApp.kt"

Additional information