NightwatchJS /geckodriver/ selenoid：在 Firefox 上执行测试时，从 selenium 服务器检索新会话时出错，
NightwatchJS /geckodriver/ selenoid: Error retrieving a new session from the selenium server, while executing test on Firefox,
设置信息：
OS - MacOS HighSierra - 10.13.3
DockerCE Mac - 17.12.0-ce-mac49
Selenoid, Selenoid-ui - 最新
Firefox - 58，geckodriver - 0.191 (0.190,0.170)
Chrome - 63，Chrome驱动程序 2.34.522932
Selenium 独立服务器 - 3.9.1
On Local setup the test runs successsfully with Firefox and Chrome
using the same geckodriver.
在远程设置中，我使用 Firefox 时测试失败，使用 Chrome 时测试成功。
来自 NightwatchJS 的详细日志
Prasannas-MacBook-Air:sim1 prvenkat$ ./node_modules/nightwatch/bin/nightwatch ./src/test/login.js --verbose
[Test / Login] Test Suite
=============================
Running: Validate Login page
INFO Request: POST /wd/hub/session
- data: {"desiredCapabilities":{"browserName":"firefox","javascriptEnabled":true,"acceptSslCerts":true,"platform":"ANY","moz:firefoxOptions":{"log":{"level":"trace"}},"version":"57.0","name":"Test / Login"}}
- headers: {"Content-Type":"application/json; charset=utf-8","Content-Length":199}
INFO Response 200 POST /wd/hub/session (3439ms) { value:
{ sessionId: '43ba7a2a-8fac-4ebb-8a8f-e046e5534944',
capabilities:
{ acceptInsecureCerts: false,
browserName: 'firefox',
browserVersion: '57.0',
'moz:accessibilityChecks': false,
'moz:headless': false,
'moz:processID': 37,
'moz:profile': '/tmp/rust_mozprofile.i3MIoxBzkGAM',
'moz:webdriverClick': false,
pageLoadStrategy: 'normal',
platformName: 'linux',
platformVersion: '4.9.60-linuxkit-aufs',
rotatable: false,
timeouts: { implicit: 0, pageLoad: 300000, script: 30000 } } } }
Error retrieving a new session from the selenium server
Connection refused! Is selenium server started?
{ value:
{ sessionId: '43ba7a2a-8fac-4ebb-8a8f-e046e5534944',
capabilities:
{ acceptInsecureCerts: false,
browserName: 'firefox',
browserVersion: '57.0',
'moz:accessibilityChecks': false,
'moz:headless': false,
'moz:processID': 37,
'moz:profile': '/tmp/rust_mozprofile.i3MIoxBzkGAM',
'moz:webdriverClick': false,
pageLoadStrategy: 'normal',
platformName: 'linux',
platformVersion: '4.9.60-linuxkit-aufs',
rotatable: false,
timeouts: [Object] } } }
来自 Docker 容器的跟踪日志
Initialize...
Connecting to ws://localhost:8080/ws/logs/43ba7a2a-8fac-4ebb-8a8f-e046e5534944...
Connected!
--- x11vnc loop: 1 ---
2018/02/22 05:20:47 Loading configuration files...
2018/02/22 05:20:47 Loaded configuration from [/etc/selenoid/browsers.json]
2018/02/22 05:20:47 Using default containers log configuration because of:read error: open config/container-logs.json: no such file or directory
2018/02/22 05:20:47 Timezone: UTC
2018/02/22 05:20:47 Listening on :4444
2018/02/22 05:20:47 [NEW_REQUEST]
2018/02/22 05:20:47 [NEW_REQUEST_ACCEPTED]
2018/02/22 05:20:47 [0] [LOCATING_SERVICE] [firefox-57.0]
2018/02/22 05:20:47 [0] [USING_DRIVER] [firefox-57.0]
2018/02/22 05:20:47 [0] [ALLOCATING_PORT]
2018/02/22 05:20:47 [0] [ALLOCATED_PORT] [41809]
2018/02/22 05:20:47 [0] [STARTING_PROCESS] [[/usr/bin/geckodriver --host :: --log debug --port=41809]]
1519276847981 geckodriver INFO geckodriver 0.19.1
1519276847981 webdriver::httpapi DEBUG Creating routes
1519276847986 geckodriver INFO Listening on [::]:41809
1519276848032 webdriver::server DEBUG -> HEAD /
1519276848160 webdriver::server DEBUG <- 404 Not Found {"value":{"error":"unknown command","message":"HEAD / did not match a known command","stacktrace":"stack backtrace:\n 0: 0x4edb3c - backtrace::backtrace::trace::hc4bd56a2f176de7e\n 1: 0x4edb72 - backtrace::capture::Backtrace::new::he3b2a15d39027c46\n 2: 0x440ac8 - webdriver::error::WebDriverError::new::ha0fbd6d1a1131b43\n 3: 0x43a665 - <webdriver::server::HttpHandler<U> as hyper::server::Handler>::handle::h343049f2e1aa3f13\n 4: 0x404b4d - std::sys_common::backtrace::__rust_begin_short_backtrace::he840f14c79c8e321\n 5: 0x40bee6 - std::panicking::try::do_call::hdd1d6b985699ef9d\n 6: 0x5e6a6c - panic_unwind::__rust_maybe_catch_panic\n at /checkout/src/libpanic_unwind/lib.rs:99\n 7: 0x41ef02 - <F as alloc::boxed::FnBox<A>>::call_box::hae8ac6ade91dedb6\n 8: 0x5df13b - alloc::boxed::{{impl}}::call_once<(),()>\n at /checkout/src/liballoc/boxed.rs:692\n - std::sys_common::thread::start_thread\n at /checkout/src/libstd/sys_common/thread.rs:21\n - std::sys::imp::thread::{{impl}}::new::thread_start\n at /checkout/src/libstd/sys/unix/thread.rs:84"}}
2018/02/22 05:20:48 [0] [PROCESS_STARTED] [32] [181.491408ms]
2018/02/22 05:20:48 [0] [PROXYING_REQUESTS] [http://127.0.0.1:41809]
2018/02/22 05:20:48 [0] [SESSION_ATTEMPTED] [unknown] [http://127.0.0.1:41809] [1]
1519276848161 webdriver::server DEBUG -> POST /session {"desiredCapabilities":{"browserName":"firefox","javascriptEnabled":true,"acceptSslCerts":true,"platform":"ANY","moz:firefoxOptions":{"log":{"level":"trace"}},"version":"57.0","name":"Test / Login"}}
1519276848167 mozrunner::runner INFO Running command: "/usr/bin/firefox" "-marionette" "-profile" "/tmp/rust_mozprofile.i3MIoxBzkGAM"
1519276848171 geckodriver::marionette TRACE connection attempt 0/600
1519276848271 geckodriver::marionette TRACE connection attempt 1/600
--- x11vnc loop: waiting for: 61
1519276848372 geckodriver::marionette TRACE connection attempt 2/600
PORT=5900
1519276848474 geckodriver::marionette TRACE connection attempt 3/600
1519276848575 geckodriver::marionette TRACE connection attempt 4/600
1519276848677 geckodriver::marionette TRACE connection attempt 5/600
1519276848694 Marionette DEBUG Received observer notification "profile-after-change"
1519276848755 Marionette DEBUG Received observer notification "command-line-startup"
1519276848756 Marionette INFO Enabled via --marionette
1519276848778 geckodriver::marionette TRACE connection attempt 6/600
1519276848880 geckodriver::marionette TRACE connection attempt 7/600
1519276848980 geckodriver::marionette TRACE connection attempt 8/600
1519276849081 geckodriver::marionette TRACE connection attempt 9/600
1519276849183 geckodriver::marionette TRACE connection attempt 10/600
1519276849285 geckodriver::marionette TRACE connection attempt 11/600
1519276849386 geckodriver::marionette TRACE connection attempt 12/600
1519276849487 geckodriver::marionette TRACE connection attempt 13/600
1519276849589 geckodriver::marionette TRACE connection attempt 14/600
1519276849690 geckodriver::marionette TRACE connection attempt 15/600
1519276849792 geckodriver::marionette TRACE connection attempt 16/600
1519276849894 geckodriver::marionette TRACE connection attempt 17/600
1519276849930 Marionette DEBUG Received observer notification "sessionstore-windows-restored"
1519276849996 geckodriver::marionette TRACE connection attempt 18/600
1519276850097 geckodriver::marionette TRACE connection attempt 19/600
1519276850197 geckodriver::marionette TRACE connection attempt 20/600
1519276850298 geckodriver::marionette TRACE connection attempt 21/600
1519276850399 geckodriver::marionette TRACE connection attempt 22/600
1519276850499 geckodriver::marionette TRACE connection attempt 23/600
1519276850600 geckodriver::marionette TRACE connection attempt 24/600
1519276850679 Marionette DEBUG Setting recommended pref toolkit.cosmeticAnimations.enabled to false
1519276850681 Marionette DEBUG Setting recommended pref datareporting.policy.dataSubmissionPolicyAccepted to false
1519276850681 Marionette DEBUG Setting recommended pref extensions.e10sBlocksEnabling to false
1519276850682 Marionette DEBUG New connections are accepted
1519276850683 Marionette INFO Listening on port 37569
1519276850702 geckodriver::marionette DEBUG Connected to Marionette onlocalhost:37569
1519276850712 Marionette DEBUG Accepted connection 0 from 127.0.0.1:42836
1519276850714 geckodriver::marionette TRACE <- {"applicationType":"gecko","marionetteProtocol":3}
1519276850714 geckodriver::marionette TRACE -> 315:[0,1,"newSession",{"acceptSslCerts":true,"browserName":"firefox","capabilities":{"desiredCapabilities":{"acceptSslCerts":true,"browserName":"firefox","javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}},"javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}]
1519276850717 Marionette TRACE 0 -> [0,1,"newSession",{"acceptSslCerts":true,"browserName":"firefox","capabilities":{"desiredCapabilities":{"acceptSslCerts":true,"browserName":"firefox","javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}},"javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}]
1519276850783 Marionette DEBUG Register listener.js for window 2147483649
1519276850806 Marionette TRACE 0 <- [1,1,null,{"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"browserName":"firefox","browserVersion":"57.0","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","pageLoadStrategy":"normal","acceptInsecureCerts":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"rotatable":false,"moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false}}]
1519276850809 geckodriver::marionette TRACE <- [1,1,null,{"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"browserName":"firefox","browserVersion":"57.0","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","pageLoadStrategy":"normal","acceptInsecureCerts":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"rotatable":false,"moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false}}]
1519276850809 webdriver::server DEBUG <- 200 OK {"value": {"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"acceptInsecureCerts":false,"browserName":"firefox","browserVersion":"57.0","moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false,"pageLoadStrategy":"normal","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","rotatable":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000}}}}
2018/02/22 05:20:50 [0] [SESSION_CREATED] [unknown] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944] [http://127.0.0.1:41809] [1] [2.832759113s]
2018/02/22 05:21:50 [SESSION_DELETED] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944]
1519276910817 webdriver::server DEBUG -> DELETE /session/43ba7a2a-8fac-4ebb-8a8f-e046e5534944
1519276910819 geckodriver::marionette TRACE -> 37:[0,2,"quit",{"flags":["eForceQuit"]}]
1519276910827 Marionette TRACE 0 -> [0,2,"quit",{"flags":["eForceQuit"]}]
1519276910830 Marionette DEBUG New connections will no longer be accepted
1519276910973 Marionette TRACE 0 <- [1,2,null,{"cause":"shutdown"}]
1519276911015 geckodriver::marionette TRACE <- [1,2,null,{"cause":"shutdown"}]
1519276911015 webdriver::server DEBUG Deleting session
1519276911015 geckodriver::marionette DEBUG Stopping browser process
1519276911077 webdriver::server DEBUG <- 200 OK {"value": {}}
2018/02/22 05:21:51 [0] [TERMINATING_PROCESS] [32]
2018/02/22 05:21:51 [0] [TERMINATED_PROCESS] [32]
Disconnected
我用三个不同的 geckodriver 测试了这个场景，但结果是一样的。
请帮忙。
错误说明了一切：
1519276847986 geckodriver INFO Listening on [::]:41809
1519276848032 webdriver::server DEBUG -> HEAD /
1519276848160 webdriver::server DEBUG <- 404 Not Found {"value":{"error":"unknown command","message":"HEAD / did not match a known command","stacktrace":"stack backtrace:\n 0: 0x4edb3c - backtrace::backtrace::trace::hc4bd56a2f176de7e\n 1: 0x4edb72 - backtrace::capture::Backtrace::new::he3b2a15d39027c46\n 2: 0x440ac8 - webdriver::error::WebDriverError::new::ha0fbd6d1a1131b43\n 3: 0x43a665 - <webdriver::server::HttpHandler<U> as hyper::server::Handler>::handle::h343049f2e1aa3f13\n 4: 0x404b4d - std::sys_common::backtrace::__rust_begin_short_backtrace::he840f14c79c8e321\n 5: 0x40bee6 - std::panicking::try::do_call::hdd1d6b985699ef9d\n 6: 0x5e6a6c - panic_unwind::__rust_maybe_catch_panic\n at /checkout/src/libpanic_unwind/lib.rs:99\n 7: 0x41ef02 - <F as alloc::boxed::FnBox<A>>::call_box::hae8ac6ade91dedb6\n 8: 0x5df13b - alloc::boxed::{{impl}}::call_once<(),()>\n at /checkout/src/liballoc/boxed.rs:692\n - std::sys_common::thread::start_thread\n at /checkout/src/libstd/sys_common/thread.rs:21\n - std::sys::imp::thread::{{impl}}::new::thread_start\n at /checkout/src/libstd/sys/unix/thread.rs:84"}}
由于这个问题，SESSION 得到 DELETED，如下所示：
2018/02/22 05:20:50 [0] [SESSION_CREATED] [unknown] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944] [http://127.0.0.1:41809] [1] [2.832759113s]
2018/02/22 05:21:50 [SESSION_DELETED] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944]
错误堆栈跟踪清楚地提到 Selenium Language Binding Art 正在尝试连接 IPv6 环回地址（[::]:41809)，根据@JimEvans comment in the discussion thread Can't launch Selenium IE Driver after upgrading to version 3.9
，它根本不适用于 3.9.x
解决方案
一个可能的解决方案是禁用 IPv6 环回地址 并在 远程设置[=34] 上启用 IPv4 =] 并执行你的 Test.
看看这里：
https://github.com/nightwatchjs/nightwatch/issues/1628#issuecomment-357746215
这意味着您将不得不回退到 3.8 和 selenium 网格设置。
设置信息： OS - MacOS HighSierra - 10.13.3 DockerCE Mac - 17.12.0-ce-mac49 Selenoid, Selenoid-ui - 最新 Firefox - 58，geckodriver - 0.191 (0.190,0.170) Chrome - 63，Chrome驱动程序 2.34.522932 Selenium 独立服务器 - 3.9.1
On Local setup the test runs successsfully with Firefox and Chrome using the same geckodriver.
在远程设置中，我使用 Firefox 时测试失败，使用 Chrome 时测试成功。
来自 NightwatchJS 的详细日志
Prasannas-MacBook-Air:sim1 prvenkat$ ./node_modules/nightwatch/bin/nightwatch ./src/test/login.js --verbose
[Test / Login] Test Suite
=============================
Running: Validate Login page
INFO Request: POST /wd/hub/session
- data: {"desiredCapabilities":{"browserName":"firefox","javascriptEnabled":true,"acceptSslCerts":true,"platform":"ANY","moz:firefoxOptions":{"log":{"level":"trace"}},"version":"57.0","name":"Test / Login"}}
- headers: {"Content-Type":"application/json; charset=utf-8","Content-Length":199}
INFO Response 200 POST /wd/hub/session (3439ms) { value:
{ sessionId: '43ba7a2a-8fac-4ebb-8a8f-e046e5534944',
capabilities:
{ acceptInsecureCerts: false,
browserName: 'firefox',
browserVersion: '57.0',
'moz:accessibilityChecks': false,
'moz:headless': false,
'moz:processID': 37,
'moz:profile': '/tmp/rust_mozprofile.i3MIoxBzkGAM',
'moz:webdriverClick': false,
pageLoadStrategy: 'normal',
platformName: 'linux',
platformVersion: '4.9.60-linuxkit-aufs',
rotatable: false,
timeouts: { implicit: 0, pageLoad: 300000, script: 30000 } } } }
Error retrieving a new session from the selenium server
Connection refused! Is selenium server started?
{ value:
{ sessionId: '43ba7a2a-8fac-4ebb-8a8f-e046e5534944',
capabilities:
{ acceptInsecureCerts: false,
browserName: 'firefox',
browserVersion: '57.0',
'moz:accessibilityChecks': false,
'moz:headless': false,
'moz:processID': 37,
'moz:profile': '/tmp/rust_mozprofile.i3MIoxBzkGAM',
'moz:webdriverClick': false,
pageLoadStrategy: 'normal',
platformName: 'linux',
platformVersion: '4.9.60-linuxkit-aufs',
rotatable: false,
timeouts: [Object] } } }
来自 Docker 容器的跟踪日志
Initialize...
Connecting to ws://localhost:8080/ws/logs/43ba7a2a-8fac-4ebb-8a8f-e046e5534944...
Connected!
--- x11vnc loop: 1 ---
2018/02/22 05:20:47 Loading configuration files...
2018/02/22 05:20:47 Loaded configuration from [/etc/selenoid/browsers.json]
2018/02/22 05:20:47 Using default containers log configuration because of:read error: open config/container-logs.json: no such file or directory
2018/02/22 05:20:47 Timezone: UTC
2018/02/22 05:20:47 Listening on :4444
2018/02/22 05:20:47 [NEW_REQUEST]
2018/02/22 05:20:47 [NEW_REQUEST_ACCEPTED]
2018/02/22 05:20:47 [0] [LOCATING_SERVICE] [firefox-57.0]
2018/02/22 05:20:47 [0] [USING_DRIVER] [firefox-57.0]
2018/02/22 05:20:47 [0] [ALLOCATING_PORT]
2018/02/22 05:20:47 [0] [ALLOCATED_PORT] [41809]
2018/02/22 05:20:47 [0] [STARTING_PROCESS] [[/usr/bin/geckodriver --host :: --log debug --port=41809]]
1519276847981 geckodriver INFO geckodriver 0.19.1
1519276847981 webdriver::httpapi DEBUG Creating routes
1519276847986 geckodriver INFO Listening on [::]:41809
1519276848032 webdriver::server DEBUG -> HEAD /
1519276848160 webdriver::server DEBUG <- 404 Not Found {"value":{"error":"unknown command","message":"HEAD / did not match a known command","stacktrace":"stack backtrace:\n 0: 0x4edb3c - backtrace::backtrace::trace::hc4bd56a2f176de7e\n 1: 0x4edb72 - backtrace::capture::Backtrace::new::he3b2a15d39027c46\n 2: 0x440ac8 - webdriver::error::WebDriverError::new::ha0fbd6d1a1131b43\n 3: 0x43a665 - <webdriver::server::HttpHandler<U> as hyper::server::Handler>::handle::h343049f2e1aa3f13\n 4: 0x404b4d - std::sys_common::backtrace::__rust_begin_short_backtrace::he840f14c79c8e321\n 5: 0x40bee6 - std::panicking::try::do_call::hdd1d6b985699ef9d\n 6: 0x5e6a6c - panic_unwind::__rust_maybe_catch_panic\n at /checkout/src/libpanic_unwind/lib.rs:99\n 7: 0x41ef02 - <F as alloc::boxed::FnBox<A>>::call_box::hae8ac6ade91dedb6\n 8: 0x5df13b - alloc::boxed::{{impl}}::call_once<(),()>\n at /checkout/src/liballoc/boxed.rs:692\n - std::sys_common::thread::start_thread\n at /checkout/src/libstd/sys_common/thread.rs:21\n - std::sys::imp::thread::{{impl}}::new::thread_start\n at /checkout/src/libstd/sys/unix/thread.rs:84"}}
2018/02/22 05:20:48 [0] [PROCESS_STARTED] [32] [181.491408ms]
2018/02/22 05:20:48 [0] [PROXYING_REQUESTS] [http://127.0.0.1:41809]
2018/02/22 05:20:48 [0] [SESSION_ATTEMPTED] [unknown] [http://127.0.0.1:41809] [1]
1519276848161 webdriver::server DEBUG -> POST /session {"desiredCapabilities":{"browserName":"firefox","javascriptEnabled":true,"acceptSslCerts":true,"platform":"ANY","moz:firefoxOptions":{"log":{"level":"trace"}},"version":"57.0","name":"Test / Login"}}
1519276848167 mozrunner::runner INFO Running command: "/usr/bin/firefox" "-marionette" "-profile" "/tmp/rust_mozprofile.i3MIoxBzkGAM"
1519276848171 geckodriver::marionette TRACE connection attempt 0/600
1519276848271 geckodriver::marionette TRACE connection attempt 1/600
--- x11vnc loop: waiting for: 61
1519276848372 geckodriver::marionette TRACE connection attempt 2/600
PORT=5900
1519276848474 geckodriver::marionette TRACE connection attempt 3/600
1519276848575 geckodriver::marionette TRACE connection attempt 4/600
1519276848677 geckodriver::marionette TRACE connection attempt 5/600
1519276848694 Marionette DEBUG Received observer notification "profile-after-change"
1519276848755 Marionette DEBUG Received observer notification "command-line-startup"
1519276848756 Marionette INFO Enabled via --marionette
1519276848778 geckodriver::marionette TRACE connection attempt 6/600
1519276848880 geckodriver::marionette TRACE connection attempt 7/600
1519276848980 geckodriver::marionette TRACE connection attempt 8/600
1519276849081 geckodriver::marionette TRACE connection attempt 9/600
1519276849183 geckodriver::marionette TRACE connection attempt 10/600
1519276849285 geckodriver::marionette TRACE connection attempt 11/600
1519276849386 geckodriver::marionette TRACE connection attempt 12/600
1519276849487 geckodriver::marionette TRACE connection attempt 13/600
1519276849589 geckodriver::marionette TRACE connection attempt 14/600
1519276849690 geckodriver::marionette TRACE connection attempt 15/600
1519276849792 geckodriver::marionette TRACE connection attempt 16/600
1519276849894 geckodriver::marionette TRACE connection attempt 17/600
1519276849930 Marionette DEBUG Received observer notification "sessionstore-windows-restored"
1519276849996 geckodriver::marionette TRACE connection attempt 18/600
1519276850097 geckodriver::marionette TRACE connection attempt 19/600
1519276850197 geckodriver::marionette TRACE connection attempt 20/600
1519276850298 geckodriver::marionette TRACE connection attempt 21/600
1519276850399 geckodriver::marionette TRACE connection attempt 22/600
1519276850499 geckodriver::marionette TRACE connection attempt 23/600
1519276850600 geckodriver::marionette TRACE connection attempt 24/600
1519276850679 Marionette DEBUG Setting recommended pref toolkit.cosmeticAnimations.enabled to false
1519276850681 Marionette DEBUG Setting recommended pref datareporting.policy.dataSubmissionPolicyAccepted to false
1519276850681 Marionette DEBUG Setting recommended pref extensions.e10sBlocksEnabling to false
1519276850682 Marionette DEBUG New connections are accepted
1519276850683 Marionette INFO Listening on port 37569
1519276850702 geckodriver::marionette DEBUG Connected to Marionette onlocalhost:37569
1519276850712 Marionette DEBUG Accepted connection 0 from 127.0.0.1:42836
1519276850714 geckodriver::marionette TRACE <- {"applicationType":"gecko","marionetteProtocol":3}
1519276850714 geckodriver::marionette TRACE -> 315:[0,1,"newSession",{"acceptSslCerts":true,"browserName":"firefox","capabilities":{"desiredCapabilities":{"acceptSslCerts":true,"browserName":"firefox","javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}},"javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}]
1519276850717 Marionette TRACE 0 -> [0,1,"newSession",{"acceptSslCerts":true,"browserName":"firefox","capabilities":{"desiredCapabilities":{"acceptSslCerts":true,"browserName":"firefox","javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}},"javascriptEnabled":true,"name":"Test / Login","platform":"ANY","version":"57.0"}]
1519276850783 Marionette DEBUG Register listener.js for window 2147483649
1519276850806 Marionette TRACE 0 <- [1,1,null,{"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"browserName":"firefox","browserVersion":"57.0","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","pageLoadStrategy":"normal","acceptInsecureCerts":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"rotatable":false,"moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false}}]
1519276850809 geckodriver::marionette TRACE <- [1,1,null,{"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"browserName":"firefox","browserVersion":"57.0","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","pageLoadStrategy":"normal","acceptInsecureCerts":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"rotatable":false,"moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false}}]
1519276850809 webdriver::server DEBUG <- 200 OK {"value": {"sessionId":"43ba7a2a-8fac-4ebb-8a8f-e046e5534944","capabilities":{"acceptInsecureCerts":false,"browserName":"firefox","browserVersion":"57.0","moz:accessibilityChecks":false,"moz:headless":false,"moz:processID":37,"moz:profile":"/tmp/rust_mozprofile.i3MIoxBzkGAM","moz:webdriverClick":false,"pageLoadStrategy":"normal","platformName":"linux","platformVersion":"4.9.60-linuxkit-aufs","rotatable":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000}}}}
2018/02/22 05:20:50 [0] [SESSION_CREATED] [unknown] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944] [http://127.0.0.1:41809] [1] [2.832759113s]
2018/02/22 05:21:50 [SESSION_DELETED] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944]
1519276910817 webdriver::server DEBUG -> DELETE /session/43ba7a2a-8fac-4ebb-8a8f-e046e5534944
1519276910819 geckodriver::marionette TRACE -> 37:[0,2,"quit",{"flags":["eForceQuit"]}]
1519276910827 Marionette TRACE 0 -> [0,2,"quit",{"flags":["eForceQuit"]}]
1519276910830 Marionette DEBUG New connections will no longer be accepted
1519276910973 Marionette TRACE 0 <- [1,2,null,{"cause":"shutdown"}]
1519276911015 geckodriver::marionette TRACE <- [1,2,null,{"cause":"shutdown"}]
1519276911015 webdriver::server DEBUG Deleting session
1519276911015 geckodriver::marionette DEBUG Stopping browser process
1519276911077 webdriver::server DEBUG <- 200 OK {"value": {}}
2018/02/22 05:21:51 [0] [TERMINATING_PROCESS] [32]
2018/02/22 05:21:51 [0] [TERMINATED_PROCESS] [32]
Disconnected
我用三个不同的 geckodriver 测试了这个场景，但结果是一样的。 请帮忙。
错误说明了一切：
1519276847986 geckodriver INFO Listening on [::]:41809
1519276848032 webdriver::server DEBUG -> HEAD /
1519276848160 webdriver::server DEBUG <- 404 Not Found {"value":{"error":"unknown command","message":"HEAD / did not match a known command","stacktrace":"stack backtrace:\n 0: 0x4edb3c - backtrace::backtrace::trace::hc4bd56a2f176de7e\n 1: 0x4edb72 - backtrace::capture::Backtrace::new::he3b2a15d39027c46\n 2: 0x440ac8 - webdriver::error::WebDriverError::new::ha0fbd6d1a1131b43\n 3: 0x43a665 - <webdriver::server::HttpHandler<U> as hyper::server::Handler>::handle::h343049f2e1aa3f13\n 4: 0x404b4d - std::sys_common::backtrace::__rust_begin_short_backtrace::he840f14c79c8e321\n 5: 0x40bee6 - std::panicking::try::do_call::hdd1d6b985699ef9d\n 6: 0x5e6a6c - panic_unwind::__rust_maybe_catch_panic\n at /checkout/src/libpanic_unwind/lib.rs:99\n 7: 0x41ef02 - <F as alloc::boxed::FnBox<A>>::call_box::hae8ac6ade91dedb6\n 8: 0x5df13b - alloc::boxed::{{impl}}::call_once<(),()>\n at /checkout/src/liballoc/boxed.rs:692\n - std::sys_common::thread::start_thread\n at /checkout/src/libstd/sys_common/thread.rs:21\n - std::sys::imp::thread::{{impl}}::new::thread_start\n at /checkout/src/libstd/sys/unix/thread.rs:84"}}
由于这个问题，SESSION 得到 DELETED，如下所示：
2018/02/22 05:20:50 [0] [SESSION_CREATED] [unknown] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944] [http://127.0.0.1:41809] [1] [2.832759113s]
2018/02/22 05:21:50 [SESSION_DELETED] [43ba7a2a-8fac-4ebb-8a8f-e046e5534944]
错误堆栈跟踪清楚地提到 Selenium Language Binding Art 正在尝试连接 IPv6 环回地址（[::]:41809)，根据@JimEvans comment in the discussion thread Can't launch Selenium IE Driver after upgrading to version 3.9
解决方案
一个可能的解决方案是禁用 IPv6 环回地址 并在 远程设置[=34] 上启用 IPv4 =] 并执行你的 Test.
看看这里： https://github.com/nightwatchjs/nightwatch/issues/1628#issuecomment-357746215
这意味着您将不得不回退到 3.8 和 selenium 网格设置。