Error 500 Server Error

# Katalon Remote Execution with Appium Docker + Android Docker **URL:** \ **Category:** Mobile Testing\ **Tags:** mobile-testing\ **Created:** [December 19, 2023, 4:50pm UTC](https://forum.katalon.com/t/katalon-remote-execution-with-appium-docker-android-docker/111452 "2023-12-19T16:50:39Z")\ **Posts on this page:** 2\ **Page:** 1

**Author:** ![sebastien.treyvaud](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/sebastien.treyvaud/32/23870_2.png) [@sebastien.treyvaud](https://forum.katalon.com/u/sebastien.treyvaud)\ **Post date:** [December 19, 2023, 4:50pm UTC](https://forum.katalon.com/t/katalon-remote-execution-with-appium-docker-android-docker/111452/1 "2023-12-19T16:50:39Z")

Hello all, I am strugglying since a few days with the remote execution using Docker containers. Finally, I found a docker containers composition that fits realitvely good with my needs: compose.yaml: ```auto version: "2.2" services: selenium_hub: image: selenium/hub:3.14.0-curium ports: - 4444:4444 samsung_galaxy_web_5.1.1: image: budtmo/docker-android:emulator_11.0 privileged: true # Increase scale number if needed scale: 1 depends_on: - selenium_hub #- real_device ports: - 6080 volumes: - ./video-samsung_5.1.1:/tmp/video environment: - DEVICE=Samsung Galaxy S6 - CONNECT_TO_GRID=true - APPIUM=true - SELENIUM_HOST=selenium_hub - MOBILE_WEB_TEST=true - AUTO_RECORD=true ``` Usage: docker-compose -f compose.yaml up The containers start, that’s fine. My issue comes when my test wants to start the application, but first, here is the remote configuration: ![image](https://europe1.discourse-cdn.com/katalon/original/3X/f/e/fe893019ecd3daa6907278fd9c7bfc2dc5de9fb7.png) And here comes the error: ![image](https://europe1.discourse-cdn.com/katalon/original/3X/0/b/0b48285e82427321438b9f06416e1f8ce87cc5e8.png) ![image](https://europe1.discourse-cdn.com/katalon/original/3X/5/0/50fa6ca62b47b329d1bed2dec84e976bd905e03c.png) and in plain text, the error (prunned for display reason): ```auto =============== ROOT CAUSE ===================== Caused by:

java.io.IOException: org.openqa.grid.common.exception.GridException: Cannot extract a capabilities from the request: {

For trouble shooting, please visit: https://docs.katalon.com/katalon-studio/docs/troubleshooting.html
================================================

12-19-2023 05:37:34 PM startExistingApplication(app2start)

Elapsed time: 1.542s

Unable to start app with application ID: 'swiss.loro.loroplay.stub.debug' (Root cause: org.openqa.selenium.SessionNotCreatedException: Unable to create a new remote session. Please check the server log for more details. Original error: Unable to parse remote response: 


Error 500 Server Error

HTTP ERROR 500
Problem accessing /wd/hub/session. Reason:
 Server Error
Caused by:
java.io.IOException: org.openqa.grid.common.exception.GridException: Cannot extract a capabilities from the request: {
  "desiredCapabilities": {
    "appActivity": ".Settings",
    "appPackage": "com.android.settings",
    "newCommandTimeout": 1800,
    "platformVersion": "11.0",
    "autoGrantPermissions": true,
    "platformName": "Android",
    "deviceName": "emulator",
    "platform": "ANDROID",
    "systemPort": 8217
  },
  "capabilities": {
    "firstMatch": [
      {
        "appium:appActivity": ".Settings",
        "appium:appPackage": "com.android.settings",
        "appium:autoGrantPermissions": true,
        "appium:deviceName": "emulator",
        "appium:newCommandTimeout": 1800,
        "platform": "ANDROID",
        "platformName": "android",
        "appium:platformVersion": "11.0",
        "appium:systemPort": 8217
      }
    ]
  }
}
	at org.openqa.grid.web.servlet.DriverServlet.process(DriverServlet.java:138)
	at org.openqa.grid.web.servlet.DriverServlet.doPost(DriverServlet.java:69)
...
	at org.openqa.grid.web.servlet.handler.SeleniumBasedRequest.createFromRequest(SeleniumBasedRequest.java:73)
	at org.openqa.grid.web.servlet.DriverServlet.process(DriverServlet.java:83)
	... 32 more
Caused by: java.lang.IllegalArgumentException: Illegal key values seen in w3c capabilities: [platform]
	at org.openqa.selenium.remote.NewSessionPayload.lambda$validate$5(NewSessionPayload.java:197)
	at java.util.stream.ReferencePipeline$11$1.accept(ReferencePipeline.java:372)
	at java.util.stream.ReferencePipeline$11$1.accept(ReferencePipeline.java:373)

```

Has anybody an idea how to remove the platform value from the desired capabilities?  
I didn’t provide it but Katalon adds it by itself ☹

Thanks in advance!!

---



**Author:** ![Elly\_Tran](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/elly_tran/32/21874_2.png) [@Elly\_Tran](https://forum.katalon.com/u/Elly_Tran)\
**Post date:** [December 21, 2023, 4:15am UTC](https://forum.katalon.com/t/katalon-remote-execution-with-appium-docker-android-docker/111452/2 "2023-12-21T04:15:42Z")



> [@sebastien.treyvaud](#):
>
> ```auto
> org.openqa.grid.common.exception.GridException: Cannot extract a capabilities from the request: {
> 
> ```

Hi,

I am not sure if the followings can help but please try:

- [GridException. Cannot extract a capabilities from the request. When create RemoteWebDriver by RemoteSessionSettings · Issue #6301 · SeleniumHQ/selenium · GitHub](https://github.com/SeleniumHQ/selenium/issues/6301)
- [Cannot extract a capabilities from the request for custom capabilities · Issue #3556 · webdriverio/webdriverio · GitHub](https://github.com/webdriverio/webdriverio/issues/3556)
- [GridException: Cannot extract a capabilities from the request - Issues/Bugs - Appium Discuss](https://discuss.appium.io/t/gridexception-cannot-extract-a-capabilities-from-the-request/17265/2)