# Discover peers, code don't run

**URL:** <https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534>\
**Category:** Bug Reports\
**Tags:** challenge:bittorrent\
**Created:** [November 15, 2025, 6:54pm UTC](https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534 "2025-11-15T18:54:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![miguelBarreiro85](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/miguelbarreiro85/32/12305_2.png) [@miguelBarreiro85](https://forum.codecrafters.io/u/miguelBarreiro85)\
**Post date:** [November 15, 2025, 6:54pm UTC](https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534/1 "2025-11-15T18:54:22Z")

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It seems the test is expecting some response.txt in my filesystem, don’t know why

[compile] Compilation successful.

Debug = true  
[tester::#FI9] Running tests for Stage #FI9 (Discover peers)  
[tester::#FI9] Couldn’t copy sample response: open /var/opt/tester/response/response.txt: no such file or directory  
[tester::#FI9] open /var/opt/tester/response/response.txt: no such file or directory  
[tester::#FI9] Test failed

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**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [November 16, 2025, 1:42am UTC](https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534/4 "2025-11-16T01:42:00Z")

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Hey @miguelBarreiro85, thanks for highlighting the issue!

We’re currently looking into it and will keep you posted as soon as we’ve got a fix in place.

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<div class="post-metadata">

**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [November 17, 2025, 6:42pm UTC](https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534/5 "2025-11-17T18:42:40Z")

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Quick update: we’ve pushed a fix, and the issue should now be resolved. Let me know if you’re still running into anything!

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**Author:** ![system](https://canada1.discourse-cdn.com/flex003/uploads/codecrafters/original/3X/7/0/700657133935c15703e22c7c8870394f6e6dc27d.svg) [@system](https://forum.codecrafters.io/u/system)\
**Post date:** [November 24, 2025, 6:43pm UTC](https://forum.codecrafters.io/t/discover-peers-code-dont-run/15534/7 "2025-11-24T18:43:00Z")

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