# WebDriverAgent failed to build: Assign property / Could not build RoutingHTTPServer

**URL:** <https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859>\
**Category:** Mobile Testing\
**Tags:** mobile-testing, katalon-studio\
**Created:** [September 27, 2019, 10:10am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859 "2019-09-27T10:10:47Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 27, 2019, 10:10am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/1 "2019-09-27T10:10:47Z")

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Hi all, how can I solve this problem? I can’t configure ios

 ![20](https://europe1.discourse-cdn.com/katalon/original/2X/b/b43a26c37b4030d3e7386aff1b7db422a6d86f72.png)

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 27, 2019, 11:56am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/2 "2019-09-27T11:56:19Z")

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slowly, please

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**Author:** ![duyluong](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/duyluong/32/1116_2.png) [@duyluong](https://forum.katalon.com/u/duyluong)\
**Post date:** [September 27, 2019, 3:47pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/3 "2019-09-27T15:47:16Z")

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@fap

Please follow this instruction: [https://docs.katalon.com/katalon-studio/docs/installing-webdriveragent-for-ios-devices.html](https://docs.katalon.com/katalon-studio/docs/installing-webdriveragent-for-ios-devices.html)

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 27, 2019, 4:03pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/4 "2019-09-27T16:03:34Z")

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I know them very well. updated the path in documentation, since appium 1.15 has changed, you have made me crazy.

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**Author:** ![duyluong](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/duyluong/32/1116_2.png) [@duyluong](https://forum.katalon.com/u/duyluong)\
**Post date:** [September 27, 2019, 5:45pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/5 "2019-09-27T17:45:45Z")

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Appium 1.12.1 or appium 1.13.0 is your friend here.

Thanks

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 30, 2019, 9:33am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/6 "2019-09-30T09:33:06Z")

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also appium 1.12 or 1.13 i have the same error, webdriverangent build failed

 ![42](https://europe1.discourse-cdn.com/katalon/original/2X/f/f7c02b01e5689b50f0003685d22e8808d93156fb.png)

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<div class="post-metadata">

**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 30, 2019, 9:52am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/7 "2019-09-30T09:52:04Z")

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11:24:36.332 xcodebuild[3698:54840] Started session with 00008020-00140D5A3686002E  
11:24:36.332 xcodebuild[3698:54840] Requesting (with session) 00008020-00140D5A3686002E: \<DTDKCopyValueRequest: 0x7fa5f1230250\> { domain: (null), key: PasswordProtected}  
11:24:36.334 xcodebuild[3698:54840] Request succeeded 00008020-00140D5A3686002E: \<DTDKCopyValueRequest: 0x7fa5f1230250\> { domain: (null), key: PasswordProtected} (1)  
11:24:36.334 xcodebuild[3698:54840] Ending session with 00008020-00140D5A3686002E  
11:33:32.079 WebDriverAgentRunner-Runner[2004:624400] Handling kAXPidStatusChangedNotification  
11:33:32.079 WebDriverAgentRunner-Runner[2004:624400] Got kAXPidStatusChangedNotification for 403: active  
11:33:32.080 WebDriverAgentRunner-Runner[2004:624400] Handling kAXPidStatusChangedNotification  
11:33:32.080 WebDriverAgentRunner-Runner[2004:624400] Got kAXPidStatusChangedNotification for 1277: active  
11:33:32.093 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.093 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.101 WebDriverAgentRunner-Runner[2004:624400] Handling kAXUserTestingNotification  
11:33:32.101 WebDriverAgentRunner-Runner[2004:624400] Handling kAXUserTestingNotification  
11:33:32.102 WebDriverAgentRunner-Runner[2004:624400] Handling kAXUserTestingNotification  
11:33:32.156 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.175 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.176 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.238 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.238 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.239 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.265 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.265 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:32.266 WebDriverAgentRunner-Runner[2004:624664] Handling kAXUserTestingNotification  
11:33:33.565 WebDriverAgentRunner-Runner[2004:624368] No application process found matching pid 403, caching  
11:33:33.566 WebDriverAgentRunner-Runner[2004:624368] No application process found matching pid 1277, caching

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<div class="post-metadata">

**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [September 30, 2019, 2:25pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/8 "2019-09-30T14:25:52Z")

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… … … … … … … … jluljnkjjlnjhoinlnjlnhj

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 7:48am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/9 "2019-10-01T07:48:30Z")

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![54](https://europe1.discourse-cdn.com/katalon/original/2X/4/4e043e73aa3dc313126238c655db19261c21b363.png)

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 7:55am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/10 "2019-10-01T07:55:40Z")

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Failed \_shouldMakeReadyForDevelopment check even though device is not locked by passcode."

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 8:24am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/11 "2019-10-01T08:24:09Z")

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One of the two will be used. Which one is undefined.  
Test Suite ‘All tests’ started at 2019-10-01 09:56:32.974  
Test Suite ‘WebDriverAgentRunner.xctest’ started at 2019-10-01 09:56:32.974  
Test Suite ‘UITestingUITests’ started at 2019-10-01 09:56:32.975  
Test Case ‘-[UITestingUITests testRunner]’ started.  
t = 0.00s Start Test at 2019-10-01 09:56:32.988  
t = 0.00s Set Up  
2019-10-01 09:56:33.035465+0200 WebDriverAgentRunner-Runner[866:90065] Built at Oct 1 2019 09:52:03  
2019-10-01 09:56:33.093848+0200 WebDriverAgentRunner-Runner[866:90065] ServerURLHere-\>[http://192.168.1.44:8100](http://192.168.1.44:8100)\<-ServerURLHere  
2019-10-01 09:56:33.095143+0200 WebDriverAgentRunner-Runner[866:90222] Using singleton test manager  
error in connection\_block\_invoke\_2: Connection interrupted

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 12:40pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/12 "2019-10-01T12:40:19Z")

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hi, I try to launch an application on a xcode simulator ios, but katalon remains in the “starting application” and the application is never launched. does anyone have launched an app on katalon with simulator or real device? because from what I read I see only people who don’t work, who have problem with ios in katalon.

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**Author:** ![duyluong](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/duyluong/32/1116_2.png) [@duyluong](https://forum.katalon.com/u/duyluong)\
**Post date:** [October 1, 2019, 2:46pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/13 "2019-10-01T14:46:29Z")

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@fap

Did you install dependencies for iOS Mobile test?

- Please follow this instruction before building WebDriverAgent: [https://docs.katalon.com/katalon-studio/docs/mobile-on-macos.html#reference-installation-guide](https://docs.katalon.com/katalon-studio/docs/mobile-on-macos.html#reference-installation-guide)
- When building **WebDriverAgent** , the command:

```auto
xcodebuild -project WebDriverAgent.xcodeproj -scheme WebDriverAgentRunner -destination 'id=<udid>' test

```

is not required, you can bypass this step.

Thanks

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 3:04pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/14 "2019-10-01T15:04:22Z")

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@duyluong, yes i have installed all dependencies, but not works:

1. physical device is not present in katalon

2. simulator is blocked at “starting application”

 ![47](https://europe1.discourse-cdn.com/katalon/original/2X/a/ab5046d553c93c655316e734953d7fdc95379325.jpeg)

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 3:05pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/15 "2019-10-01T15:05:46Z")

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failed to launch com.name.app application

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 3:11pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/16 "2019-10-01T15:11:20Z")

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java.util.concurrent.ExecutionException: org.openqa.selenium.SessionNotCreatedException: Unable to create a new remote session. Original error: unexpected end of stream on Connection{127.0.0.1:60376, proxy=DIRECT hostAddress=/127.0.0.1:60376 cipherSuite=none protocol=http/1.1}

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 3:32pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/17 "2019-10-01T15:32:10Z")

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@duyluong

java.util.concurrent.ExecutionException: org.openqa.selenium.SessionNotCreatedException: Unable to create a new remote session. Please check the server log for more details. Original error: An unknown server-side error occurred while processing the command. Original error: Unable to start WebDriverAgent session because of xcodebuild failure: An unknown server-side error occurred while processing the command. Original error: Could not proxy command to remote server. Original error: Error: connect ECONNREFUSED 127.0.0.1:60768

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 4:00pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/18 "2019-10-01T16:00:25Z")

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@duyluong

java.util.concurrent.ExecutionException: org.openqa.selenium.SessionNotCreatedException: Unable to create a new remote session. Original error: unexpected end of stream on Connection{127.0.0.1:61176, proxy=DIRECT hostAddress=/127.0.0.1:61176 cipherSuite=none protocol=http/1.1}

Build info: version: ‘unknown’, revision: ‘unknown’, time: ‘unknown’

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 1, 2019, 4:16pm UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/19 "2019-10-01T16:16:05Z")

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![17](https://europe1.discourse-cdn.com/katalon/original/2X/0/0e2b7f336dd01ecfb1ed6b5a36365f5cd9c918a8.jpeg) ![16](https://europe1.discourse-cdn.com/katalon/original/2X/5/5ff2ff27ae58cc0b6a8d3b020abaebdcc076f9a2.png)

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**Author:** ![fap](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/fap/32/23869_2.png) [@fap](https://forum.katalon.com/u/fap)\
**Post date:** [October 2, 2019, 10:20am UTC](https://forum.katalon.com/t/webdriveragent-failed-to-build-assign-property-could-not-build-routinghttpserver/33859/20 "2019-10-02T10:20:02Z")

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thanks great community.