# Failed to create connection: dial tcp 127.0.0.1:4221: connect: connection refused **URL:** \ **Category:** Challenges\ **Tags:** challenge:http-server\ **Created:** [August 1, 2025, 5:09pm UTC](https://forum.codecrafters.io/t/failed-to-create-connection-dial-tcp-127-0-0-1-connect-connection-refused/14232 "2025-08-01T17:09:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![mole-480](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/mole-480/32/32_2.png) [@mole-480](https://forum.codecrafters.io/u/mole-480)\ **Post date:** [August 1, 2025, 5:09pm UTC](https://forum.codecrafters.io/t/failed-to-create-connection-dial-tcp-127-0-0-1-connect-connection-refused/14232/1 "2025-08-01T17:09:17Z")
I’m stuck on Stage #cn2. What is weird is that when running > codecrafters test --previous it also runs stage CN2 successfully. But when running > codecrafters test I get this error: > [tester::#CN2] Failed to create connection: dial tcp 127.0.0.1:4221: connect: connection refused > [tester::#CN2] Test failed Output: > **bubuntu@W11CKLPSV3:~/codecrafters-http-server-c$ _codecrafters test --previous_** > Initiating test run… > > ⚡ This is a turbo test run. > > Running tests. Logs should appear shortly… > > [compile] Compilation successful. > > Debug = true > > [tester::#AT4] Running tests for Stage #AT4 (Bind to a port) > [tester::#AT4] Running program > [tester::#AT4] $ ./your\_program.sh > [tester::#AT4] Connecting to localhost:4221 using TCP > [your\_program] – Running vcpkg install > [your\_program] All requested packages are currently installed. > [your\_program] All requested installations completed successfully in: 41 us > [your\_program] – Running vcpkg install - done > [your\_program] – The C compiler identification is GNU 14.2.0 > [tester::#AT4] Failed to connect to port 4221, retrying in 1s > [tester::#AT4] Failed to connect to port 4221, retrying in 1s > [tester::#AT4] Failed to connect to port 4221, retrying in 1s > [your\_program] – The CXX compiler identification is GNU 14.2.0 > [your\_program] – Detecting C compiler ABI info > [your\_program] – Detecting C compiler ABI info - done > [your\_program] – Check for working C compiler: /usr/bin/cc - skipped > [your\_program] – Detecting C compile features > [your\_program] – Detecting C compile features - done > [your\_program] – Detecting CXX compiler ABI info > [your\_program] – Detecting CXX compiler ABI info - done > [your\_program] – Check for working CXX compiler: /usr/local/bin/c++ - skipped > [your\_program] – Detecting CXX compile features > [your\_program] – Detecting CXX compile features - done > [your\_program] – Configuring done (5.6s) > [your\_program] – Generating done (0.0s) > [your\_program] – Build files have been written to: /app/build > [your\_program] [16%] Building C object CMakeFiles/http-server.dir/src/http\_response.c.o > [your\_program] [33%] Building C object CMakeFiles/http-server.dir/src/http\_status.c.o > [your\_program] [50%] Building C object CMakeFiles/http-server.dir/src/log.c.o > [your\_program] [66%] Building C object CMakeFiles/http-server.dir/src/main.c.o > [your\_program] [83%] Building C object CMakeFiles/http-server.dir/src/utils.c.o > [your\_program] [100%] Linking C executable http-server > [your\_program] [100%] Built target http-server > [your\_program] Logs from your program will appear here! > [your\_program] Waiting for a client to connect… > [tester::#AT4] Success! Closing connection > [tester::#AT4] Test passed. > [tester::#AT4] Terminating program > [your\_program] Client connected > [tester::#AT4] Program terminated successfully > > [tester::#IA4] Running tests for Stage #IA4 (Respond with 200) > [tester::#IA4] Running program > [tester::#IA4] $ ./your\_program.sh > [your\_program] – Running vcpkg install > [your\_program] All requested packages are currently installed. > [your\_program] All requested installations completed successfully in: 39.5 us > [your\_program] – Running vcpkg install - done > [your\_program] – Configuring done (0.0s) > [your\_program] – Generating done (0.0s) > [your\_program] – Build files have been written to: /app/build > [your\_program] [100%] Built target http-server > [your\_program] Logs from your program will appear here! > [your\_program] Waiting for a client to connect… > [tester::#IA4] Connected to localhost port 4221 > [tester::#IA4] $ curl -v http:/ /localhost:4221/ > [tester::#IA4] \> GET / HTTP/1.1 > [tester::#IA4] \> Host: localhost:4221 > [tester::#IA4] \> > [tester::#IA4] Sent bytes: “GET / HTTP/1.1\r\nHost: localhost:4221\r\n\r\n” > [tester::#IA4] Received bytes: “HTTP/1.1 200 OK\r\n\r\n” > [tester::#IA4] \< HTTP/1.1 200 OK > [tester::#IA4] \< > [tester::#IA4] Received response with 200 status code > [tester::#IA4] Test passed. > [tester::#IA4] Terminating program > [your\_program] Client connected > [tester::#IA4] Program terminated successfully > > [tester::#IH0] Running tests for Stage #IH0 (Extract URL path) > [tester::#IH0] Running program > [tester::#IH0] $ ./your\_program.sh > [your\_program] – Running vcpkg install > [your\_program] All requested packages are currently installed. > [your\_program] All requested installations completed successfully in: 47.4 us > [your\_program] – Running vcpkg install - done > [your\_program] – Configuring done (0.0s) > [your\_program] – Generating done (0.0s) > [your\_program] – Build files have been written to: /app/build > [your\_program] [100%] Built target http-server > [your\_program] Logs from your program will appear here! > [your\_program] Waiting for a client to connect… > [tester::#IH0] Connected to localhost port 4221 > [tester::#IH0] $ curl -v http:/ /localhost:4221/grape > [tester::#IH0] \> GET /grape HTTP/1.1 > [tester::#IH0] \> Host: localhost:4221 > [tester::#IH0] \> > [tester::#IH0] Sent bytes: “GET /grape HTTP/1.1\r\nHost: localhost:4221\r\n\r\n” > [tester::#IH0] Received bytes: “HTTP/1.1 404 Not Found\r\n\r\n” > [tester::#IH0] \< HTTP/1.1 404 Not Found > [tester::#IH0] \< > [tester::#IH0] Received response with 404 status code > [your\_program] Client connected > [tester::#IH0] Test passed. > [tester::#IH0] Terminating program > [tester::#IH0] Program terminated successfully > > [tester::#CN2] Running tests for Stage #CN2 (Respond with body) > [tester::#CN2] Running program > [tester::#CN2] $ ./your\_program.sh > [your\_program] – Running vcpkg install > [your\_program] All requested packages are currently installed. > [your\_program] All requested installations completed successfully in: 38.6 us > [your\_program] – Running vcpkg install - done > [your\_program] – Configuring done (0.0s) > [your\_program] – Generating done (0.0s) > [your\_program] – Build files have been written to: /app/build > [your\_program] [100%] Built target http-server > [your\_program] Logs from your program will appear here! > [your\_program] Waiting for a client to connect… > [your\_program] Client connected > [tester::#CN2] Connected to localhost port 4221 > [tester::#CN2] $ curl -v http:/ /localhost:4221/echo/orange > [tester::#CN2] \> GET /echo/orange HTTP/1.1 > [tester::#CN2] \> Host: localhost:4221 > [tester::#CN2] \> > [tester::#CN2] Sent bytes: “GET /echo/orange HTTP/1.1\r\nHost: localhost:4221\r\n\r\n” > [tester::#CN2] Received bytes: “HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: 6\r\n\r\norange” > [tester::#CN2] \< HTTP/1.1 200 OK > [tester::#CN2] \< Content-Type: text/plain > [tester::#CN2] \< Content-Length: 6 > [tester::#CN2] \< > [tester::#CN2] \< orange > [tester::#CN2] \< > [tester::#CN2] Received response with 200 status code > [tester::#CN2] ✓ Content-Type header is present > [tester::#CN2] ✓ Content-Length header is present > [tester::#CN2] ✓ Body is correct > [tester::#CN2] Test passed. > [tester::#CN2] Terminating program > [your\_program] buf: 6 > [tester::#CN2] Program terminated successfully > > Test passed. Congrats! > **bubuntu@W11CKLPSV3:~/codecrafters-http-server-c$ _codecrafters test_** > Initiating test run… > > ⚡ This is a turbo test run. > > Running tests. Logs should appear shortly… > > [compile] Compilation successful. > > Debug = true > > [tester::#CN2] Running tests for Stage #CN2 (Respond with body) > [tester::#CN2] Running program > [tester::#CN2] $ ./your\_program.sh > [your\_program] – Running vcpkg install > [your\_program] All requested packages are currently installed. > [your\_program] All requested installations completed successfully in: 46.1 us > [your\_program] – Running vcpkg install - done > [your\_program] – The C compiler identification is GNU 14.2.0 > [tester::#CN2] Failed to create connection: dial tcp 127.0.0.1:4221: connect: connection refused > [tester::#CN2] Test failed > [tester::#CN2] Terminating program > [tester::#CN2] Program terminated successfully > > View our article on debugging test failures: ---
**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:** [August 1, 2025, 5:58pm UTC](https://forum.codecrafters.io/t/failed-to-create-connection-dial-tcp-127-0-0-1-connect-connection-refused/14232/4 "2025-08-01T17:58:11Z")
Hey @mole-480, looks like your repo is missing the required `.codecrafters` folder. I’ve pushed a fix to your repo. You can run `git pull` to sync the changes. Let me know if you’re still running into issues! ---
**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:** [August 6, 2025, 5:59pm UTC](https://forum.codecrafters.io/t/failed-to-create-connection-dial-tcp-127-0-0-1-connect-connection-refused/14232/6 "2025-08-06T17:59:16Z")
Closed on August 6, 2025, 5:59pm UTC This topic was automatically closed 5 days after the last reply. New replies are no longer allowed.