# Error: Expected: HTTP-version, Received: "" (#EJ5)

**URL:** <https://forum.codecrafters.io/t/error-expected-http-version-received-ej5/1127>\
**Category:** Challenges\
**Tags:** challenge:http-server\
**Created:** [July 22, 2024, 1:23pm UTC](https://forum.codecrafters.io/t/error-expected-http-version-received-ej5/1127 "2024-07-22T13:23:50Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![rohitpaulk](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/rohitpaulk/32/6_2.png) [@rohitpaulk](https://forum.codecrafters.io/u/rohitpaulk)\
**Post date:** [July 30, 2024, 10:19am UTC](https://forum.codecrafters.io/t/error-expected-http-version-received-ej5/1127/6 "2024-07-30T10:19:40Z")

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Ah, okay for this stage in particular I think some older solutions might not work since we fixed the tests to actually test concurrency in [#EJ5: Tests green without implementing concurrency - C lang](https://forum.codecrafters.io/t/ej5-tests-green-without-implementing-concurrency-c-lang/511).

Happy to take a look at your code and get to the bottom of this. Will share results shortly!

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