# My first Test failed I don\`t know why **URL:** \ **Category:** API Testing\ **Tags:** api-testing, katalon-studio\ **Created:** [June 19, 2019, 11:57am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205 "2019-06-19T11:57:32Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![vedat\_la](https://avatars.discourse-cdn.com/v4/letter/v/76d3ee/32.png) [@vedat\_la](https://forum.katalon.com/u/vedat_la)\ **Post date:** [June 19, 2019, 11:57am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/1 "2019-06-19T11:57:32Z")
Hello there, I`ve made the decision to try out Katalon but I have some serious probelms. I would be very thankful if someone could help me. So, i created my first very basic API-Test but it don`t work as shown in YouTube. ![grafik](https://europe1.discourse-cdn.com/katalon/original/2X/5/51b4302a51132cf559cc672c0c54b64192245000.png) These are the configurations in YouTube as soon as I click on the “Test Request” it dosent`t work: java.net.UnknownHostException: [thomas-bayer.com](http://thomas-bayer.com) at com.kms.katalon.core.webservice.common.RestfulClient.response(RestfulClient.java:192) at com.kms.katalon.core.webservice.common.RestfulClient.sendRequest(RestfulClient.java:97) at com.kms.katalon.core.webservice.common.RestfulClient.send(RestfulClient.java:59) at com.kms.katalon.controller.WebServiceController.sendRequest(WebServiceController.java:113) at com.kms.katalon.composer.webservice.parts.RestServicePart$6.run(RestServicePart.java:185) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119) Katalon shows me this here. So how can I fix the problem? Thank you for your help! Greetings, Vedat ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [June 19, 2019, 5:14pm UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/2 "2019-06-19T17:14:50Z")
Are you using a proxy server? ---
**Author:** ![Timo\_Kuisma](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@Timo\_Kuisma](https://forum.katalon.com/u/Timo_Kuisma)\ **Post date:** [June 19, 2019, 7:41pm UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/3 "2019-06-19T19:41:58Z")
hello, ping this host [thomas-bayer.com](http://thomas-bayer.com) are you able to connect it? ping [thomas-bayer.com](http://thomas-bayer.com) ---
**Author:** ![vedat\_la](https://avatars.discourse-cdn.com/v4/letter/v/76d3ee/32.png) [@vedat\_la](https://forum.katalon.com/u/vedat_la)\ **Post date:** [June 24, 2019, 7:44am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/4 "2019-06-24T07:44:35Z")
Hello, yes I am using a proxy server. Is there any problem with that? ---
**Author:** ![vedat\_la](https://avatars.discourse-cdn.com/v4/letter/v/76d3ee/32.png) [@vedat\_la](https://forum.katalon.com/u/vedat_la)\ **Post date:** [June 24, 2019, 7:45am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/5 "2019-06-24T07:45:30Z")
Hello, no i can`t connect to thomas-bayer.com. I am getting this error: java.net.MalformedURLException: no protocol: thomas-bayer.com at com.kms.katalon.core.webservice.common.RestfulClient.sendRequest(RestfulClient.java:74) at com.kms.katalon.core.webservice.common.RestfulClient.send(RestfulClient.java:59) at com.kms.katalon.controller.WebServiceController.sendRequest(WebServiceController.java:113) at com.kms.katalon.composer.webservice.parts.RestServicePart$6.run(RestServicePart.java:185) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119) It`s the same error. ---
**Author:** ![Marek\_Melocik](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/marek_melocik/32/371_2.png) [@Marek\_Melocik](https://forum.katalon.com/u/Marek_Melocik)\ **Post date:** [June 24, 2019, 7:56am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/6 "2019-06-24T07:56:42Z")
> [@vedat\_la](#): > > java.net.MalformedURLException: no protocol: [thomas-bayer.com](http://thomas-bayer.com) You should use http(s) protocol in URL. ---
**Author:** ![vedat\_la](https://avatars.discourse-cdn.com/v4/letter/v/76d3ee/32.png) [@vedat\_la](https://forum.katalon.com/u/vedat_la)\ **Post date:** [June 24, 2019, 8:42am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/7 "2019-06-24T08:42:58Z")
oh, forgot it sorry, but there is still the same error ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [June 24, 2019, 3:01pm UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/8 "2019-06-24T15:01:25Z")
> [@vedat\_la](#): > > Hello, > yes I am using a proxy server. Is there any problem with that? No, it’s not a problem, you just need to tell Katalon about your proxy: 1.) Open Window \> Katalon Studio Preferences \> Katalon \> Proxy: ![image](https://europe1.discourse-cdn.com/katalon/original/2X/6/62af712d27bcbb4cdd30e8ca270d819520dc8600.png) 2.) Under “Proxy Option”, select “Use system proxy configuration”, and click Apply. This should work, but if it doesn’t, try the next step: 3.) Under “Proxy Option”, select “Manual Proxy Configuration”, and enter all fields with your proxy info, including username/password, if any, and click Apply. ---
**Author:** ![vedat\_la](https://avatars.discourse-cdn.com/v4/letter/v/76d3ee/32.png) [@vedat\_la](https://forum.katalon.com/u/vedat_la)\ **Post date:** [June 25, 2019, 11:25am UTC](https://forum.katalon.com/t/my-first-test-failed-i-don-t-know-why/28205/10 "2019-06-25T11:25:06Z")
Thanks man now it is working