{"id":1092,"hash":"dc737bf2339824db4995168b1b8b7ffd44be0cebc3d2c8fd78825e4b6c10970a","pattern":"session not created: This version of ChromeDriver only supports Chrome version 74 error with ChromeDriver Chrome using Selenium","full_message":"I'm trying to run RSelenium using the rsDriver function, but when I run \nrD <- rsDriver()\nI get a message telling me I need a newer version of Chrome:\n\n> rD <- rsDriver()\nchecking Selenium Server versions:\nBEGIN: PREDOWNLOAD\nBEGIN: DOWNLOAD\nBEGIN: POSTDOWNLOAD\nchecking chromedriver versions:\nBEGIN: PREDOWNLOAD\nBEGIN: DOWNLOAD\nBEGIN: POSTDOWNLOAD\nchecking geckodriver versions:\nBEGIN: PREDOWNLOAD\nBEGIN: DOWNLOAD\nBEGIN: POSTDOWNLOAD\nchecking phantomjs versions:\nBEGIN: PREDOWNLOAD\nBEGIN: DOWNLOAD\nBEGIN: POSTDOWNLOAD\n[1] \"Connecting to remote server\"\n\nSelenium message:session not created: This version of ChromeDriver only supports Chrome version 74\n  (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Mac OS X 10.14.3 x86_64)\n\nCould not open chrome browser.\nClient error message:\n     Summary: SessionNotCreatedException\n     Detail: A new session could not be created.\n     Further Details: run errorDetails method\nCheck server log for further details.\n\nThe error message appears to say that I need Chrome version 74.0.3729.6, but when I look in Chrome's settings, it tells me that I'm running the latest stable version (73.0.3683.75). Upon further googling, 74.0.3729.6 is a pre-release dev version of Chrome: do I need to install this in order to use ChromeDriver with RSelenium? \n\nI'm not wedded to the idea of using Chrome, but I haven't been able to get rsDriver to use Firefox: when I specify browser = \"firefox\", rsDriver gives me the same error message about ChromeDriver not supporting my version of Chrome.\n\nMy session info is:\n\nR version 3.5.2 (2018-12-20)\nPlatform: x86_64-apple-darwin15.6.0 (64-bit)\nRunning under: macOS Mojave 10.14.3\n\nMatrix products: default\nBLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib\nLAPACK: /Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRlapack.dylib\n\nlocale:\n[1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8\n\nattached base packages:\n[1] stats     graphics  grDevices utils     datasets  methods   base     \n\nother attached packages:\n [1] wdman_0.2.4     forcats_0.3.0   stringr_1.3.1   dplyr_0.7.8     purrr_0.2.5     readr_1.3.1     tidyr_0.8.2    \n [8] tibble_2.0.1    ggplot2_3.1.0   tidyverse_1.2.1 rvest_0.3.2     xml2_1.2.0      RSelenium_1.7.5","ecosystem":"pypi","package_name":"selenium","package_version":null,"solution":"I encountered the same issue today and found this post and others from Google. I think I may have a more direct solution as a modification of your code. The previous answer is correct in identifying the mismatch in versions. \n\nI tried the proposed solutions to no avail. I found that the versions were correct on my computer. However, this mismatch error was not resulting from the actual versions installed on the computer, but rather the RSelenium code is seeking the \"latest\" version of Chrome/ChromeDriver by default argument. See ?rsDriver() help page for the arguments. \n\nIf you run the code binman::list_versions(\"chromedriver\") as specified in the help documentation, then you can identify the versions of compatible with the function. In my case, I was able to use the following code to establish a connection. \n\ndriver <- rsDriver(browser=c(\"chrome\"), chromever=\"73.0.3683.68\", extraCapabilities = eCaps)\n\nYou should be able to specify your version of Chrome with the chromever= argument. I had to use the closest version, though (my chrome version was \"73.0.3683.75\").\n\nHope this helps!","confidence":0.95,"source":"stackoverflow","source_url":"https://stackoverflow.com/questions/55201226/session-not-created-this-version-of-chromedriver-only-supports-chrome-version-7","votes":200,"created_at":"2026-04-19T04:52:19.397223+00:00","updated_at":"2026-04-19T04:52:19.397223+00:00"}