使用 Python 绑定，我在启动 chromedriver 时遇到了问题。我（可能有点匆忙）为 OS X 安装了 Mavericks 升级。当我第一次尝试运行 chromedriver 时，我收到了一个未知错误：Chromedriver 无法启动。（Chrome 驱动程序 2.2、2.3 和 2.4）。
在做了一些阅读之后，我发现了使用详细模式的建议解决方法（Chromedriver 2.4，Chrome 版本 30.0.1599.101）。现在，我仍然无法启动它，但我收到了一个不同的错误，这次是在浏览器打开后：
selenium.common.exceptions.WebDriverException: Message: u"Unknown command
'WaitForAllTabsToStopLoading'. Options: AcceptOrDismissAppModalDialog,
ActionOnSSLBlockingPage, ActivateTab, AddBookmark, AddDomEventObserver, AppendTab,
ApplyAccelerator, BringBrowserToFront, ClearEventQueue, CloseBrowserWindow, CloseTab,
CreateNewAutomationProvider, DeleteCookie, DeleteCookieInBrowserContext,
DoesAutomationObjectExist, DragAndDropFilePaths, ExecuteJavascript,
ExecuteJavascriptInRenderView, GetActiveTabIndex, GetAppModalDialogMessage,
GetBookmarkBarStatus, GetBookmarksAsJSON, GetBrowserInfo, GetBrowserWindowCount,
GetChromeDriverAutomationVersion, GetCookies, GetCookiesInBrowserContext,
GetDownloadDirectory, GetExtensionsInfo, GetIndicesFromTab, GetLocalStatePrefsInfo,
GetMultiProfileInfo, GetNextEvent, GetPrefsInfo, GetProcessInfo, GetSecurityState,
GetTabCount, GetTabIds, GetTabInfo, GetViews, GoBack, GoForward, InstallExtension,
IsDownloadShelfVisible, IsFindInPageVisible, IsMenuCommandEnabled, IsPageActionVisible,
IsTabIdValid, MaximizeView, NavigateToURL, OpenFindInPage, OpenNewBrowserWindow,
OpenNewBrowserWindowWithNewProfile, OpenProfileWindow, OverrideGeoposition,
RefreshPolicies, Reload, RemoveBookmark, RemoveEventObserver, ReparentBookmark,
RunCommand, SendWebkitKeyEvent, SetBookmarkTitle, SetBookmarkURL, SetCookie,
SetCookieInBrowserContext, SetDownloadShelfVisible, SetExtensionStateById,
SetLocalStatePrefs, SetPrefs, SetViewBounds, SimulateAsanMemoryBug,
TriggerBrowserActionById, TriggerPageActionById, UninstallExtensionById,
UpdateExtensionsNow, WaitForBookmarkModelToLoad, WaitUntilNavigationCompletes,
WebkitMouseButtonDown, WebkitMouseButtonUp, WebkitMouseClick, WebkitMouseDoubleClick,
WebkitMouseDrag, WebkitMouseMove, AcceptCurrentFullscreenOrMouseLockRequest,
AddOrEditSearchEngine, AddSavedPassword, CloseNotification,
DenyCurrentFullscreenOrMouseLockRequest, DisablePlugin, EnablePlugin, FindInPage,
GetAllNotifications, GetDownloadsInfo, GetFPS, GetHistoryInfo, GetInitialLoadTimes,
GetNTPInfo, GetNavigationInfo, GetOmniboxInfo, GetPluginsInfo, GetSavedPasswords,
GetSearchEngineInfo, GetV8HeapStats, IsFullscreenBubbleDisplayed,
IsFullscreenBubbleDisplayingButtons, IsFullscreenForBrowser, IsFullscreenForTab,
IsFullscreenPermissionRequested, IsMouseLockPermissionRequested, IsMouseLocked,
KillRendererProcess, LaunchApp, LoadSearchEngineInfo, OmniboxAcceptInput,
OmniboxMovePopupSelection, PerformActionOnDownload, PerformActionOnInfobar,
PerformActionOnSearchEngine, RemoveNTPMostVisitedThumbnail, RemoveSavedPassword,
RestoreAllNTPMostVisitedThumbnails, SaveTabContents, SetAppLaunchType, SetOmniboxText,
SetWindowDimensions, WaitForAllDownloadsToComplete, WaitForNotificationCount, "