# Challenge: Coroutines | raywenderlich.com

**URL:** <https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621>\
**Category:** 🎓 Courses & Articles\
**Created:** [August 3, 2020, 10:37pm UTC](https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621 "2020-08-03T22:37:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![filbabic](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/filbabic/32/108144_2.png) [@filbabic](https://forums.kodeco.com/u/filbabic)\
**Post date:** [August 3, 2020, 10:37pm UTC](https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621/1 "2020-08-03T22:37:10Z")

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This is a companion discussion topic for the original entry at [https://www.raywenderlich.com/10376651-android-networking-fundamentals/lessons/29](https://www.raywenderlich.com/10376651-android-networking-fundamentals/lessons/29)

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**Author:** ![ricindigus](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/ricindigus/32/93103_2.png) [@ricindigus](https://forums.kodeco.com/u/ricindigus)\
**Post date:** [August 3, 2020, 10:42pm UTC](https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621/2 "2020-08-03T22:42:25Z")

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Todo el curso solo he podido ver los videos, mas no hacer los desafios, por que los servicios no funcionan. Descargue el material en cada clase, y corri el proyecto, y siempre sale el mensaje “Invalid Data” al intentar registrar un nuevo usuario. Veo que a otros compañeros del curso les pasa lo mismo y ya dejaron de reportar el error porque sigue sin solucionarse. Por favor corrijanlo para poder hacer los desafios.

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**Author:** ![shogunkaramazov](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/shogunkaramazov/32/108826_2.png) [@shogunkaramazov](https://forums.kodeco.com/u/shogunkaramazov)\
**Post date:** [August 4, 2020, 12:21am UTC](https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621/3 "2020-08-04T00:21:51Z")

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@ricindigus Please ask your question in English in order to get answers. Thank you!

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**Author:** ![shogunkaramazov](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/shogunkaramazov/32/108826_2.png) [@shogunkaramazov](https://forums.kodeco.com/u/shogunkaramazov)\
**Post date:** [April 6, 2021, 3:01am UTC](https://forums.kodeco.com/t/challenge-coroutines-raywenderlich-com/116621/4 "2021-04-06T03:01:03Z")

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@ricindigus Do you still have issues with this?