PHP Fatal error: Uncaught Error: Class "DesiredCapabilities" not found #1091

humpataa · 2024-01-24T21:34:35Z

humpataa
Jan 24, 2024

I have Selenium 4.16 installed. Runs good with simple Python script in terminal. Now I want to use it using PHP.
So I have done:

php composer.phar require php-webdriver/webdriver

And I am trying to use a first example as shown:

<?php
	use Facebook\WebDriver\Remote\RemoteWebDriver;
	require_once("vendor/autoload.php");

	$serverUrl = 'http://localhost:4444';
	
	// Chrome
	$driver = RemoteWebDriver::create($serverUrl, DesiredCapabilities::chrome());
	// Go to URL
	$driver->get('https://en.wikipedia.org/wiki/Selenium_(software)');
...

This crashes on my webserver with:

PHP Fatal error: Uncaught Error: Class "DesiredCapabilities" not found

I have needed days (!) to get the freaking Selenium working, all its depencies, versions, unexpected crashes. I am so tired to go through all this again with this PHP library. Please tell me: does this work with a latest Selenium version? What is the problem?
Please advise!

humpataa · 2024-01-24T21:38:36Z

humpataa
Jan 24, 2024
Author

Oh btw, since this thing has been renamed to php-webdriver instead of "Facebook", I have tried to change the example code to:

use php-webdriver\WebDriver\Remote\RemoteWebDriver;
require_once("vendor/autoload.php");

$serverUrl = 'http://localhost:4444';

// Chrome
$driver = RemoteWebDriver::create($serverUrl, DesiredCapabilities::chrome());
// Go to URL
$driver->get('https://en.wikipedia.org/wiki/Selenium_(software)');
...

But this crashes as well, I guess "-" are not allowed in "use" statements:

PHP Parse error: syntax error, unexpected token "-", expecting "," or ";" in ...

Please help.

0 replies

OndraM · 2024-01-25T13:39:14Z

OndraM
Jan 25, 2024
Maintainer

Hi, yes, this library works :).

Please check the complete working example here: https://github.com/php-webdriver/php-webdriver/blob/main/example.php

You are using class DesiredCapabilities while not importing its namespace with use statement like this:

use Facebook\WebDriver\Remote\DesiredCapabilities;

0 replies

humpataa · 2024-01-25T14:14:26Z

humpataa
Jan 25, 2024
Author

Thank you. I need to set "--headless" and "--no-sandbox" options for Chrome to run. Otherwise it breaks with "DevToolsActivePort file doesn't exist" which is a sign saying "do not run this as root". I don't know why this happens, because executing a PHP script is surely not run by root ... how can I set these options or do you have an idea for that "DevToolsActivePort" message?

7 replies

OndraM Jan 25, 2024
Maintainer

See https://github.com/php-webdriver/php-webdriver/wiki/Chrome#chromeoptions

$chromeOptions = new ChromeOptions();
$chromeOptions->addArguments(['--no-sandbox', '--headless=new']);

$capabilities = DesiredCapabilities::chrome();
$capabilities->setCapability(ChromeOptions::CAPABILITY_W3C, $chromeOptions);

$driver = RemoteWebDriver::create($serverUrl, $capabilities);

elnath78 Mar 11, 2024

I read --no-sandbox is not safe in production.

elnath78 Mar 11, 2024

@OndraM Run a test adding the arguments as in your sample above, this is the grid output:

selenium-hub    | 12:24:13.657 INFO [LocalDistributor.newSession] - Session request received by the Distributor:
selenium-hub    |  [Capabilities {browserName: chrome, goog:chromeOptions: {args: [--no-sandbox, --headless=new]}}]
chrome_1        | 12:26:23.939 WARN [DriverServiceSessionFactory.apply] - Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist
chrome_1        | Host info: host: '0c14e9bed9e9', ip: '172.18.0.4'
chrome_1        | Build info: version: '4.18.1', revision: 'b1d3319b48'
chrome_1        | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
chrome_1        | Driver info: driver.version: unknown
chrome_1        | 12:26:25.471 WARN [SeleniumSpanExporter$1.lambda$export$1] - Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist
chrome_1        | Host info: host: '0c14e9bed9e9', ip: '172.18.0.4'
chrome_1        | Build info: version: '4.18.1', revision: 'b1d3319b48'
chrome_1        | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
chrome_1        | Driver info: driver.version: unknown
chrome_1        | 12:26:25.474 WARN [SeleniumSpanExporter$1.lambda$export$1] - org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist
chrome_1        | Host info: host: '0c14e9bed9e9', ip: '172.18.0.4'
chrome_1        | Build info: version: '4.18.1', revision: 'b1d3319b48'
chrome_1        | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
chrome_1        | Driver info: driver.version: unknown
chrome_1        |       at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:139)
chrome_1        |       at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:95)
chrome_1        |       at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:67)
chrome_1        |       at org.openqa.selenium.grid.node.config.DriverServiceSessionFactory.apply(DriverServiceSessionFactory.java:162)
chrome_1        |       at org.openqa.selenium.grid.node.config.DriverServiceSessionFactory.apply(DriverServiceSessionFactory.java:72)
chrome_1        |       at org.openqa.selenium.grid.node.local.SessionSlot.apply(SessionSlot.java:147)
chrome_1        |       at org.openqa.selenium.grid.node.local.LocalNode.newSession(LocalNode.java:464)
chrome_1        |       at org.openqa.selenium.grid.node.NewNodeSession.execute(NewNodeSession.java:50)
chrome_1        |       at org.openqa.selenium.remote.http.Route$TemplatizedRoute.handle(Route.java:192)
chrome_1        |       at org.openqa.selenium.remote.http.Route.execute(Route.java:69)
chrome_1        |       at org.openqa.selenium.grid.security.RequiresSecretFilter.lambda$apply$0(RequiresSecretFilter.java:62)
chrome_1        |       at org.openqa.selenium.remote.tracing.SpanWrappedHttpHandler.execute(SpanWrappedHttpHandler.java:87)
chrome_1        |       at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)
chrome_1        |       at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:346)
chrome_1        |       at org.openqa.selenium.remote.http.Route.execute(Route.java:69)
chrome_1        |       at org.openqa.selenium.grid.node.Node.execute(Node.java:262)
chrome_1        |       at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:346)
chrome_1        |       at org.openqa.selenium.remote.http.Route.execute(Route.java:69)
chrome_1        |       at org.openqa.selenium.remote.AddWebDriverSpecHeaders.lambda$apply$0(AddWebDriverSpecHeaders.java:35)
chrome_1        |       at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
chrome_1        |       at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)
chrome_1        |       at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
chrome_1        |       at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)
chrome_1        |       at org.openqa.selenium.netty.server.SeleniumHandler.lambda$channelRead0$0(SeleniumHandler.java:44)
chrome_1        |       at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
chrome_1        |       at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
chrome_1        |       at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
chrome_1        |       at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
chrome_1        |       at java.base/java.lang.Thread.run(Thread.java:829)
chrome_1        |
chrome_1        | 12:26:25.492 WARN [SeleniumSpanExporter$1.lambda$export$3] - {"traceId": "e512a72308298970d7349c3aa183a5c2","eventTime": 1710159983966464660,"eventName": "exception","attributes": {"driver.url": "http:\u002f\u002flocalhost:24524","exception.message": "Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist \nHost info: host: '0c14e9bed9e9', ip: '172.18.0.4'\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown","exception.stacktrace": "org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist \nHost info: host: '0c14e9bed9e9', ip: '172.18.0.4'\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\n\tat org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:139)\n\tat org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:95)\n\tat org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:67)\n\tat org.openqa.selenium.grid.node.config.DriverServiceSessionFactory.apply(DriverServiceSessionFactory.java:162)\n\tat org.openqa.selenium.grid.node.config.DriverServiceSessionFactory.apply(DriverServiceSessionFactory.java:72)\n\tat org.openqa.selenium.grid.node.local.SessionSlot.apply(SessionSlot.java:147)\n\tat org.openqa.selenium.grid.node.local.LocalNode.newSession(LocalNode.java:464)\n\tat org.openqa.selenium.grid.node.NewNodeSession.execute(NewNodeSession.java:50)\n\tat org.openqa.selenium.remote.http.Route$TemplatizedRoute.handle(Route.java:192)\n\tat org.openqa.selenium.remote.http.Route.execute(Route.java:69)\n\tat org.openqa.selenium.grid.security.RequiresSecretFilter.lambda$apply$0(RequiresSecretFilter.java:62)\n\tat org.openqa.selenium.remote.tracing.SpanWrappedHttpHandler.execute(SpanWrappedHttpHandler.java:87)\n\tat org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)\n\tat org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:346)\n\tat org.openqa.selenium.remote.http.Route.execute(Route.java:69)\n\tat org.openqa.selenium.grid.node.Node.execute(Node.java:262)\n\tat org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:346)\n\tat org.openqa.selenium.remote.http.Route.execute(Route.java:69)\n\tat org.openqa.selenium.remote.AddWebDriverSpecHeaders.lambda$apply$0(AddWebDriverSpecHeaders.java:35)\n\tat org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)\n\tat org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)\n\tat org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)\n\tat org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:63)\n\tat org.openqa.selenium.netty.server.SeleniumHandler.lambda$channelRead0$0(SeleniumHandler.java:44)\n\tat java.base\u002fjava.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)\n\tat java.base\u002fjava.util.concurrent.FutureTask.run(FutureTask.java:264)\n\tat java.base\u002fjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base\u002fjava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base\u002fjava.lang.Thread.run(Thread.java:829)\n","exception.type": "org.openqa.selenium.SessionNotCreatedException","logger": "org.openqa.selenium.grid.node.config.DriverServiceSessionFactory","session.capabilities": "{\"browserName\": \"chrome\",\"browserVersion\": \"122.0\",\"goog:chromeOptions\": {\"args\": [\"--no-sandbox\",\"--headless=new\"],\"binary\": \"\\u002fusr\\u002fbin\\u002fgoogle-chrome\"},\"platformName\": \"linux\",\"se:noVncPort\": 7900,\"se:vncEnabled\": true}\n"}}
chrome_1        |
chrome_1        | 12:26:25.528 WARN [SeleniumSpanExporter$1.lambda$export$3] - {"traceId": "e512a72308298970d7349c3aa183a5c2","eventTime": 1710159985522730966,"eventName": "Unable to create session with the driver","attributes": {"current.session.count": 0,"logger": "org.openqa.selenium.grid.node.local.LocalNode","session.request.capabilities": "Capabilities {browserName: chrome, goog:chromeOptions: {args: [--no-sandbox, --headless=new]}}","session.request.downstreamdialect": "[W3C]"}}
chrome_1        |
selenium-hub    | 12:26:25.696 WARN [SeleniumSpanExporter$1.lambda$export$3] - {"traceId": "e512a72308298970d7349c3aa183a5c2","eventTime": 1710159853647358243,"eventName": "Session request received by the Distributor","attributes": {"logger": "org.openqa.selenium.grid.distributor.local.LocalDistributor","request.payload": "[Capabilities {browserName: chrome, goog:chromeOptions: {args: [--no-sandbox, --headless=new]}}]"}}
selenium-hub    |
selenium-hub    | 12:26:25.711 WARN [SeleniumSpanExporter$1.lambda$export$1] - Unable to create session: Could not start a new session. Could not start a new session. Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist
selenium-hub    | Host info: host: '0c14e9bed9e9', ip: '172.18.0.4'
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    | 12:26:25.722 WARN [SeleniumSpanExporter$1.lambda$export$1] - org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Could not start a new session. Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist
selenium-hub    | Host info: host: '0c14e9bed9e9', ip: '172.18.0.4'
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    | Build info: version: '4.18.1', revision: 'b1d3319b48'
selenium-hub    | System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'
selenium-hub    | Driver info: driver.version: unknown
selenium-hub    |       at org.openqa.selenium.grid.node.remote.RemoteNode.newSession(RemoteNode.java:152)
selenium-hub    |       at org.openqa.selenium.grid.distributor.local.LocalDistributor.startSession(LocalDistributor.java:651)
selenium-hub    |       at org.openqa.selenium.grid.distributor.local.LocalDistributor.newSession(LocalDistributor.java:570)
selenium-hub    |       at org.openqa.selenium.grid.distributor.local.LocalDistributor$NewSessionRunnable.handleNewSessionRequest(LocalDistributor.java:830)
selenium-hub    |       at org.openqa.selenium.grid.distributor.local.LocalDistributor$NewSessionRunnable.lambda$run$1(LocalDistributor.java:790)
selenium-hub    |       at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
selenium-hub    |       at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
selenium-hub    |       at java.base/java.lang.Thread.run(Thread.java:829)
selenium-hub    |
selenium-hub    | 12:26:25.740 WARN [SeleniumSpanExporter$1.lambda$export$3] - {"traceId": "e512a72308298970d7349c3aa183a5c2","eventTime": 1710159985664249308,"eventName": "exception","attributes": {"exception.message": "Unable to create session: Could not start a new session. Could not start a new session. Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist \nHost info: host: '0c14e9bed9e9', ip: '172.18.0.4'\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown","exception.stacktrace": "org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Could not start a new session. Error while creating session with the driver service. Stopping driver service: Could not start a new session. Response code 500. Message: session not created: DevToolsActivePort file doesn't exist \nHost info: host: '0c14e9bed9e9', ip: '172.18.0.4'\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\nBuild info: version: '4.18.1', revision: 'b1d3319b48'\nSystem info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-25-generic', java.version: '11.0.21'\nDriver info: driver.version: unknown\n\tat org.openqa.selenium.grid.node.remote.RemoteNode.newSession(RemoteNode.java:152)\n\tat org.openqa.selenium.grid.distributor.local.LocalDistributor.startSession(LocalDistributor.java:651)\n\tat org.openqa.selenium.grid.distributor.local.LocalDistributor.newSession(LocalDistributor.java:570)\n\tat org.openqa.selenium.grid.distributor.local.LocalDistributor$NewSessionRunnable.handleNewSessionRequest(LocalDistributor.java:830)\n\tat org.openqa.selenium.grid.distributor.local.LocalDistributor$NewSessionRunnable.lambda$run$1(LocalDistributor.java:790)\n\tat java.base\u002fjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base\u002fjava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat java.base\u002fjava.lang.Thread.run(Thread.java:829)\n","exception.type": "org.openqa.selenium.SessionNotCreatedException","logger": "org.openqa.selenium.grid.distributor.local.LocalDistributor","request.payload": "[Capabilities {browserName: chrome, goog:chromeOptions: {args: [--no-sandbox, --headless=new]}}]"}}
selenium-hub    |
selenium-hub    | 12:26:25.834 WARN [SeleniumSpanExporter$1.lambda$export$3] - {"traceId": "e512a72308298970d7349c3aa183a5c2","eventTime": 1710159985833029848,"eventName": "HTTP request execution complete","attributes": {"http.flavor": 1,"http.handler_class": "org.openqa.selenium.grid.sessionqueue.local.LocalNewSessionQueue","http.host": "*ip redacted*:4444","http.method": "POST","http.request_content_length": "250","http.scheme": "HTTP","http.status_code": 500,"http.target": "\u002fsession"}}

OndraM Mar 11, 2024
Maintainer

I read --no-sandbox is not safe in production.

How would you use the browser running WebDriver commands in production? It would be usually run on isolated environment like Docker or on your local environment, so this would be irrelevant.

elnath78 Mar 11, 2024

It is inside docker but I don't think it would be safe, however I did a test and got the same result, it didn't fix.

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PHP Fatal error: Uncaught Error: Class "DesiredCapabilities" not found #1091

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PHP Fatal error: Uncaught Error: Class "DesiredCapabilities" not found #1091

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