FlareSolverr on Linux works when running from source but not compiled
Author: alaunayCreated Oct 26, 2025Updated May 28, 2026
Labelsbughelp wantedneeds investigation
Have you checked our README?
- I have checked the README
Have you followed our Troubleshooting?
- I have followed your Troubleshooting
Is there already an issue for your problem?
- I have checked older issues, open and closed
Have you checked the discussions?
- I have read the Discussions
Have you ACTUALLY checked all these?
YES
Environment
- FlareSolverr version: 3.4.2
- Last working FlareSolverr version: no idea
- Operating system: Debian 13 Trixie
- Are you using Docker: no
- FlareSolverr User-Agent (see log traces or / endpoint): Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
- Are you using a VPN: no
- Are you using a Proxy: no
- Are you using Captcha Solver: no
- If using captcha solver, which one:
- URL to test this issue: https://www.yggtorrent.top/engine/search?do=search&order=desc&sort=publish_date&category=allDescription
Trying to solve yggtorrent captcha fails, here are debug logs from the last release:
$ LOG_LEVEL=debug /opt/flaresolverr/flaresolverr
2025-10-26 21:01:27 INFO ReqId 139952823828608 FlareSolverr 3.4.2
2025-10-26 21:01:27 DEBUG ReqId 139952823828608 Debug log enabled
2025-10-26 21:01:27 INFO ReqId 139952823828608 Testing web browser installation...
2025-10-26 21:01:27 INFO ReqId 139952823828608 Platform: Linux-6.1.0-39-amd64-x86_64-with-glibc2.41
2025-10-26 21:01:27 INFO ReqId 139952823828608 Chrome / Chromium path: /opt/flaresolverr/_internal/chrome/chrome
2025-10-26 21:01:27 INFO ReqId 139952823828608 Chrome / Chromium major version: 138
2025-10-26 21:01:27 INFO ReqId 139952823828608 Launching web browser...
2025-10-26 21:01:27 DEBUG ReqId 139952823828608 Launching web browser...
2025-10-26 21:01:28 DEBUG ReqId 139952823828608 Skipping Selenium Manager; path to chrome driver specified in Service class: /home/flaresolverr/.local/share/undetected_chromedriver/undetected_chromedriver
2025-10-26 21:01:28 DEBUG ReqId 139952823828608 Started executable: `/home/flaresolverr/.local/share/undetected_chromedriver/undetected_chromedriver` in a child process with pid: 7874 using 0 to output -3
2025-10-26 21:01:30 INFO ReqId 139952823828608 FlareSolverr User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
2025-10-26 21:01:30 INFO ReqId 139952823828608 Test successful!
2025-10-26 21:01:30 INFO ReqId 139952823828608 Serving on http://0.0.0.0:8191
2025-10-26 21:02:14 INFO ReqId 139952785184448 Incoming request => POST /v1 body: {'maxTimeout': 55000, 'cmd': 'request.get', 'url': 'https://www.yggtorrent.top/engine/search?do=search&order=desc&sort=publish_date&category=all'}
2025-10-26 21:02:14 DEBUG ReqId 139952785184448 Launching web browser...
2025-10-26 21:02:14 DEBUG ReqId 139952785184448 Skipping Selenium Manager; path to chrome driver specified in Service class: /home/flaresolverr/.local/share/undetected_chromedriver/chromedriver
2025-10-26 21:02:14 DEBUG ReqId 139952785184448 Started executable: `/home/flaresolverr/.local/share/undetected_chromedriver/chromedriver` in a child process with pid: 7970 using 0 to output -3
2025-10-26 21:02:15 DEBUG ReqId 139952785184448 New instance of webdriver has been created to perform the request
2025-10-26 21:02:15 DEBUG ReqId 139952751597248 Navigating to... https://www.yggtorrent.top/engine/search?do=search&order=desc&sort=publish_date&category=all
2025-10-26 21:02:16 INFO ReqId 139952751597248 Challenge detected. Title found: Just a moment...
2025-10-26 21:02:16 DEBUG ReqId 139952751597248 Waiting for title (attempt 1): Just a moment...
2025-10-26 21:02:17 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:02:17 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:02:23 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:02:23 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:02:23 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:02:25 DEBUG ReqId 139952751597248 Waiting for title (attempt 2): Just a moment...
2025-10-26 21:02:27 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:02:27 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:02:33 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:02:33 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:02:33 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:02:35 DEBUG ReqId 139952751597248 Waiting for title (attempt 3): Just a moment...
2025-10-26 21:02:36 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:02:36 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:02:42 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:02:42 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:02:42 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:02:44 DEBUG ReqId 139952751597248 Waiting for title (attempt 4): Just a moment...
2025-10-26 21:02:45 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:02:45 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:02:51 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:02:51 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:02:51 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:02:53 DEBUG ReqId 139952751597248 Waiting for title (attempt 5): Just a moment...
2025-10-26 21:02:54 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:02:54 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:03:00 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:03:00 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:03:00 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:03:02 DEBUG ReqId 139952751597248 Waiting for title (attempt 6): Just a moment...
2025-10-26 21:03:03 DEBUG ReqId 139952751597248 Timeout waiting for selector
2025-10-26 21:03:03 DEBUG ReqId 139952751597248 Try to find the Cloudflare verify checkbox...
2025-10-26 21:03:09 DEBUG ReqId 139952751597248 Cloudflare verify checkbox found and clicked!
2025-10-26 21:03:09 DEBUG ReqId 139952751597248 Try to find the Cloudflare 'Verify you are human' button...
2025-10-26 21:03:09 DEBUG ReqId 139952751597248 The Cloudflare 'Verify you are human' button not found on the page.
2025-10-26 21:03:10 DEBUG ReqId 139952785184448 A used instance of webdriver has been destroyed
2025-10-26 21:03:10 ERROR ReqId 139952785184448 Error: Error solving the challenge. Timeout after 55.0 seconds.
2025-10-26 21:03:10 DEBUG ReqId 139952785184448 Response => POST /v1 body: {'status': 'error', 'message': 'Error: Error solving the challenge. Timeout after 55.0 seconds.', 'startTimestamp': 1761508934110, 'endTimestamp': 1761508990416, 'version': '3.4.2'}
2025-10-26 21:03:10 INFO ReqId 139952785184448 Response in 56.306 s
2025-10-26 21:03:10 INFO ReqId 139952785184448 10.0.3.1 POST http://10.0.3.143:8191/v1 500 Internal Server ErrorLogged Error Messages
2025-10-26 21:09:06 DEBUG ReqId 139952743188160 The Cloudflare 'Verify you are human' button not found on the page.Screenshots
No response
Source: FlareSolverr/FlareSolverr