Unable to start chrome or Firefox driver using etaoin

[zendevil]

I'm using the etaoin library to test for chrome and firefox. I have both chromedriver and gecko driver installed using brew in macOS.
But when I try using them in the repl, like so:

user> (use 'etaoin.api)
(require '[etaoin.keys :as k])

nilnil
user> (def driver (chrome))

I get the error:

2. Unhandled clojure.lang.Compiler$CompilerException
   Error compiling form-init3678264593908236466.clj at (53:19)
   #:clojure.error{:phase :execution,
                   :line 53,
                   :column 19,
                   :source "form-init3678264593908236466.clj"}
                    ........
1. Caused by clojure.lang.ExceptionInfo
   throw+: {:response {:sessionId "73c8caf2d8989efccbb27778acb523ad", :status
   13, :value {:message "unknown error: cannot find Chrome binary\n (Driver
   info: chromedriver=81.0.4044.138
   (8c6c7ba89cc9453625af54f11fd83179e23450fa-refs/branch-heads/4044@{#999}),platform=Mac
   OS X 10.15.4 x86_64)"}}, :path "session", :payload {:desiredCapabilities
   {:loggingPrefs {:browser "ALL"}}}, :method :post, :type :etaoin/http-error,
   :port 19716, :host "127.0.0.1", :status 200, :driver {:args ("chromedriver"
   "--port=19716"), :capabilities {:loggingPrefs {:browser "ALL"}}, :process
   #object[java.lang.UNIXProcess 0x2237ad71 "java.lang.UNIXProcess@2237ad71"],
   :locator "xpath", :type :chrome, :env nil, :port 19716, :host "127.0.0.1",
   :url "http://127.0.0.1:19716"}}
   {:response
    {:sessionId "73c8caf2d8989efccbb27778acb523ad",
     :status 13,
     :value
     {:message
      "unknown error: cannot find Chrome binary\n  (Driver info: chromedriver=81.0.4044.138 (8c6c7ba89cc9453625af54f11fd83179e23450fa-refs/branch-heads/4044@{#999}),platform=Mac OS X 10.15.4 x86_64)"}},
    :path "session",
    :payload {:desiredCapabilities {:loggingPrefs {:browser "ALL"}}},
    :method :post,
    :type :etaoin/http-error,
    :port 19716,
    :host "127.0.0.1",
    :status 200,
    :driver
    {:args ("chromedriver" "--port=19716"),
     :capabilities {:loggingPrefs {:browser "ALL"}},
     :process
     #object[java.lang.UNIXProcess 0x2237ad71 "java.lang.UNIXProcess@2237ad71"],
     :locator "xpath",
     :type :chrome,
     :env nil,
     :port 19716,
     :host "127.0.0.1",
     :url "http://127.0.0.1:19716"}}

How do I fix this?

[obiSerra]

It looks like Clojure cannot find the binary for Chrome (or Firefox).
I had the same problem that I solved looking for the path of the browser binary and passing it the run-driver function like:

(api/run-driver (api/create-driver :firefox) {:path-driver "/mnt/c/Program Files/Mozilla Firefox/firefox.exe"})

[scottlowe]

This isn't really a fair question or issue for the Etaoin project - it's a straight up Chrome / Chromedriver issue.

Regardless, the answer is right there in your pasted error - chromedriver can't find the Chrome binary installed in the expected location on your OS.

These are the expected locations for each supported OS:
https://github.com/SeleniumHQ/selenium/wiki/ChromeDriver

Your version of ChromeDriver should also match your version of Chrome as closely as possible. Because you're using homebrew, you can update chromedriver with brew cask upgrade chromedriver.

[igrishaev]

As it was already mentioned, in a case the driver cannot discover the browser, you can help it by providing the :path-driver key. That happens sometimes when the driver is outdated or maybe you installed the browser using a non-standard way.