ErrLookup › SeleniumHQ/selenium
SeleniumHQ/selenium
A browser automation framework and ecosystem. · Java · 2,367 source files
Analyzed at aa36b38e69 on 2026-08-14. 393 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| You may not select a disabled option | exception | error | ruby, selenium, webdriver, forms, select, validation |
| Argument to isShown must be of type Element | exception | error | dom, visibility, isshown, type-validation, atoms |
| None of the following is a | console | warning | linux, native, x11, libx11, selenium, environment, elf-arch |
| Params must be a value in SameSite. Received | exception | error | bidi, storage, validation, same-site, library-bug, enum, instanceof |
| %s | console | info | linux, native, x11, libx11, selenium, diagnostic, stderr |
| Unexpected compiled output format. Expected it to start with | exception | error | build, nodejs, bazel, atoms, typescript, compiler, validation |
| Failed to dlopen | console | error | linux, native, x11, libx11, dlopen, shared-library, selenium, dependencies |
| ClipRectangle must be an instance of ClipRectangle. Received | exception | error | bidi, screenshot, validation, clip-rectangle, type-check |
| Pattern must be an instance of UrlPattern. Received | exception | error | bidi, network, intercept, type-validation, urlpattern |
| Unexpected compiled output format. Expected it to start… | exception | error | build, nodejs, bazel, atoms, typescript, compiler, validation |
| incompatible proxy type # | exception | error | proxy, configuration, argument-error, ruby |
| module has no attribute | exception | error | import, lazy-loading, attribute-access, python |
| Element does not have any client rects | exception | error | dom, geometry, chrome-driver, atoms, clientrects |
| timed out after # seconds | exception | error | wait, timeout, polling, ruby |
| BiDi connection is not open | exception | error | bidi, websocket, connection, race-condition, runtime |
| # invalid for # | exception | error | argument-error, url-building, bridge, custom-commands |
| This method needs to be implemented in a sub class | exception | error | service, abstract-method, subclassing, api-contract |
| {frame_reference} | exception | error | frames, locator, synchronization, switch-to |
| Downloads must be enabled in options | validation | error | javascript, downloads, selenium-grid, capabilities, webdriver |
| ${msg} | exception | error | bidi, browsing-context, screenshot, server-error, invalid-argument |
| status code # ; payload # | exception | critical | server-error, http-response, error-mapping, w3c, catch-all |
| module 'selenium.webdriver' has no attribute | exception | error | python, imports, lazy-loading, attribute-error, webdriver |
| interval must be a positive number | validation | error | bidi, validation, bug, websocket, python |
| CDP devtools module not loaded. Call import_devtools()… | exception | critical | python, cdp, devtools, initialization, trio |
| Type must be an instance of String. Received | exception | error | bidi, screenshot, validation, string, image-format |
| ' ' not found | validation | warning | python, bidi, network, handlers, validation |
| Event ' ' not found. Available events | validation | error | python, bidi, events, validation, event-manager |
| You may only deselect all options of a multi-select | validation | error | select, deselect, multi-select, async, bug, dead-code |
| # isn't a valid ScrollOrigin | exception | error | ruby, scroll, interactions, type-error, wheel-actions |
| () must be called in a connection context. | exception | error | python, cdp, contextvars, connection, trio |
| key input is not a single code point | validation | error | input, keyboard, unicode, validation, invalid-argument |
| Cannot set readonly attribute | validation | error | fedcm, readonly, attribute-error, descriptor |
| timeout must be a positive number | validation | error | websocket, bidi, configuration, argument-validation |
| Value must be an instance of BytesValue. Received | exception | error | bidi, network-interception, validation, bytes-value, type-check, typo |
| events should be string or string array | validation | error | bidi, session, subscribe, type-validation, javascript |
| Expected exactly one | exception | error | selenium, build-script, update-cddl, regex, bazel, ci, file-structure |
| Expected input and output file paths | exception | error | build, nodejs, bazel, atoms, cli, typescript |
| Safari does not support options that are not namespaced | exception | error | safari, capabilities, validation, argument-error, ruby |
| Requested DocFX version | exception | error | python, build-script, versioning, nuget, validation |
| Custom locator did not return a WebElement | validation | error | javascript, locators, custom-locator, type-error, webdriver |
| ${response.error} | exception | error | bidi, script, preload-script, remote-error, javascript |
| service_args must be a sequence | validation | error | service-args, type-check, chromedriver, python |
| () must be called in a session context. | exception | error | python, cdp, contextvars, session, trio |
| No v8_revision found in DEPS for Chrome | exception | error | selenium, build-script, update-cdp, chromium, v8, deps, ci |
| not available for download on (minimum version: ). Check… | exception | error | rust, selenium-manager, chrome, chromedriver, versioning, network |
| expected # to have 2 elements | exception | error | find-element, argument-error, ruby |
| The path is not a valid file | validation | error | driver-finder, service-path, filesystem, setup |
-32700 Client received invalid JSON | error_code | error | python, cdp, websocket, json, browser-error, jsonrpc |
| Pass in a CaptureScreenshotParameters object. Received | exception | error | bidi, browsing-context, screenshot, type-validation, invalid-argument |
| {response.status} {response.status_text}: {response.url} | http | error | api-request, http, status-code, network |
| No chromedriver download found for platform 'linux64' | exception | error | selenium, build-script, pinned-browsers, chromedriver, linux64, ci |
| Unable to obtain # | exception | critical | driver-setup, selenium-manager, ruby, environment, executable |
| To submit an element, it must be nested inside a form… | exception | error | webelement, form, submit, javascript |
| log_level must be one of | validation | error | configuration, validation, logging, server-runner |
| Unsupported DOM mutation type(s) | validation | error | python, bidi, dom-mutation, mutation-observer, validation |
| Unrecognized command | exception | error | javascript, http, executor, command, legacy-webdriver |
| Binary Location Must be a String | validation | error | selenium, wpewebkit, options, type-error, binary-location, python |
| Unable to obtain driver for | exception | critical | driver-finder, selenium-manager, setup, critical, no-such-driver |
| Missing required parameter | validation | error | javascript, http, path-parameters, command, legacy-webdriver |
| CDP version not found in capabilities | exception | error | cdp, devtools, capabilities, grid |
| cannot find element by # | exception | error | find-element, locator-strategy, argument-error, ruby |
| Cannot locate an element with provided parameters | exception | error | javascript, locators, find-element, webdriver, no-such-element |
| should be of type | validation | error | ie, type-validation, options, descriptor, value-error |
| Unable to discover in online repository | exception | error | version-discovery, online-repository, selenium-manager |
| Unsupported platform/architecture combination | exception | critical | platform, selenium-manager, arm64, driver-management, environment |
| # is not a # | exception | error | interactions, pointer-properties, typecheck, numeric, ruby |
| BiDi connection is closed | exception | error | bidi, websocket, connection, runtime, lifecycle |
| browsingContexts should be string or string array | validation | error | bidi, session, subscribe, type-validation, javascript |
| DevTools is not supported by the Remote Server | exception | error | devtools, cdp, remote-driver, capability-missing, chromium-only |
| You may not set a file detector that is null | validation | error | file-upload, property-setter, argument-validation |
| unknown guard type: # | exception | error | guards, testing, internal-api, argument-error, ruby |
| Don't use both :options and :capabilities when initializing… | exception | error | argument-error, remote-driver, options, capabilities, migration |
| mutation_types must name at least one mutation type | validation | error | python, bidi, dom-mutation, validation, mutation-observer |
| Origin must be one of | exception | error | bidi, screenshot, validation, enum, origin |
| The command's generator function did not exit when expected! | exception | error | bidi, internal, bug, generator |
| Callback with ID # does not exist for event # : # | exception | error | websocket, bidi, callbacks, devtools |
| Wrong browser/driver version | exception | error | rust, selenium-manager, archive, download, versioning, http |
| Contexts must be an array of non-empty strings | validation | error | bidi, network, cache, array-validation, javascript |
| Select only works on | exception | error | select, element-validation, async, unhandled-rejection, constructor |
| Unsuccessful command executed | exception | error | selenium-manager, driver-download, network, version-mismatch, diagnostics |
| x and y or height and width need values | validation | error | window-management, argument-validation, w3c-webdriver |
| You are trying to upload something that isn't a file. | exception | error | file-upload, file-detector, validation, filesystem |
| Can't get debugger address. | exception | error | cdp, devtools, capabilities, chrome, edge |
| could not convert # into color | exception | error | color, parsing, validation, argument-error, ruby |
| Wrong version | validation | error | version-parsing, selenium-manager, rust |
| Cannot write storage state to | exception | error | storage-state, filesystem, write, api-request |
| Specified proxy type | validation | error | proxy, proxy-type, compatibility, validation |
| unable to bind to locking port # | exception | critical | socket-lock, port-contention, parallel, timeout, ruby |
| # is not a valid action | exception | error | interactions, action-builder, typecheck, internal-api, ruby |
| :options must be an instance of # | exception | error | ruby, driver-init, options, local-driver |
| unable to connect to # | exception | critical | service-manager, driver-startup, connection, timeout, ruby |
| Can not connect to the Service | exception | error | service, connectivity, timeout, startup, diagnostics |
| CDP support for Firefox is removed. Please switch to… | exception | error | javascript, cdp, firefox, bidi, deprecated-cdp, webdriver |
| Must provide either 'remote_server_addr' or 'client_config' | exception | error | remote, connection, configuration, required-argument |
| Quality must be a number. Received | exception | error | bidi, screenshot, validation, number, image-format |
| Failed to list at : HTTP | exception | error | selenium, build-script, update-cddl, github-api, network, rate-limit, ci |
| Compound class names are not allowed. | exception | error | remote, locator, css-selector, class-name, invalid-selector |
| :capabilities parameter only accepts objects responding to… | exception | error | argument-error, capabilities, serialization, as-json |
| Unsuccessful command executed | exception | error | selenium-manager, subprocess, permissions, chained-exception, diagnostics |
| Expected exactly one webref_cddl_extension use_repo block… | exception | error | selenium, build-script, update-cddl, regex, bazel, module-bazel, ci |