[ovirt-users] Uncaught exception occurred. Cannot read property 'f' of null

Alexander Wels awels at redhat.com
Tue Oct 18 13:56:45 UTC 2016 

On Tuesday, October 18, 2016 3:44:31 PM EDT Jorick Astrego wrote:
> Hi,
> 
> We have ovirt connected to our freeipa domain. Things work fine
> generally, but once in a while I get the following error pop up in the ui:
> 
>     Uncaught exception occurred. Please try reloading the page. Details:
>     Exception caught: Exception caught: (TypeError) __gwt$exception:
>     <skipped>: Cannot read property 'f' of null
>     Please have your administrator check the UI logs
> 

Could you install the symbol maps assocaited with the obfuscated code so we 
can get a readable stack trace. To install the symbol maps please run the 
following command on the machine running the engine (or VM if it is HE).

yum install ovirt-engine-webadmin-portal-debuginfo

Please restart the ovirt-engine process with

systemctl restart ovirt-engine

after you have installed the symbol maps. Then next time you see the message 
in the UI, the stack trace in the log should be readable and we can help you 
better determine what is causing the problem.

> The log that goes with it:
> 
> 2016-10-17 16:31:32,578 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-21) [] Permutation name: 430985F23DFC1C8BE1C7FDD91EDAA785
> 2016-10-17 16:31:32,578 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-21) [] Uncaught exception: :
> com.google.gwt.event.shared.UmbrellaException: Exception caught:
> Exception caught: (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.ps(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 3837) at
> Unknown.xs(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.C3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.F3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.P2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 117) at
> Unknown.hwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.twf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 162) at
> Unknown.xwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 14293) at
> Unknown.KVe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 1172) at
> Unknown.yUe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 33) at Unknown.viy(<anonymous>@53)    at
> Unknown.Piy(<anonymous>@18587) at
> Unknown.zOr(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 189) at
> Unknown.$to(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 311) at
> Unknown.VBo(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 2599) at
> Unknown.mCo(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 8942) at
> Unknown.qRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 116) at
> Unknown.tRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 568) at
> Unknown.kVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 74) at
> Unknown.nVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 25943) at
> Unknown.cUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 150) at
> Unknown.fUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 24587) at
> Unknown.KJe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 21125) at
> Unknown.Izk(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 10384) at
> Unknown.P3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 137) at
> Unknown.g4(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 8271) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 65) at
> Unknown._t(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 29) at
> Unknown.du(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 57) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 54)Caused by:
> com.google.gwt.event.shared.UmbrellaException: Exception caught:
> (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.ps(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 3837) at
> Unknown.xs(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.C3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.F3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.I2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 86) at
> Unknown.lNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 44) at
> Unknown.PMx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 83) at
> Unknown.ZMx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 5765) at
> Unknown.gwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 13988) at
> Unknown.x$(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 4001) at
> Unknown.Z2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 209) at
> Unknown.P2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 59) ... 25 more
> Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.Kds(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.hNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 74) at
> Unknown.jNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 6015) at
> Unknown.x$(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 4001) at
> Unknown.Z2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 209) at
> Unknown.I2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 28) ... 32 more
> 
> 2016-10-18 11:37:38,018 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-31) [] Permutation name: 430985F23DFC1C8BE1C7FDD91EDAA785
> 2016-10-18 11:37:38,019 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-31) [] Uncaught exception: :
> com.google.gwt.core.client.JavaScriptException: (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'F' of null
>      at
> Unknown.iQo(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 9744) at
> Unknown.kRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 84) at
> Unknown.nRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 438) at
> Unknown.eVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 40) at
> Unknown.hVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 25827) at
> Unknown.cUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 180) at
> Unknown.fUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 24587) at
> Unknown.KJe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 21125) at
> Unknown.Izk(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 10384) at
> Unknown.P3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 137) at
> Unknown.g4(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 8271) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 65) at
> Unknown._t(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 29) at
> Unknown.du(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 57) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 54)
> 
> 2016-10-18 15:37:44,405 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-8) [] Permutation name: 430985F23DFC1C8BE1C7FDD91EDAA785
> 2016-10-18 15:37:44,406 ERROR
> [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService]
> (default task-8) [] Uncaught exception: :
> com.google.gwt.event.shared.UmbrellaException: Exception caught:
> Exception caught: (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.ps(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 3837) at
> Unknown.xs(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.C3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.F3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.P2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 117) at
> Unknown.hwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.twf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 162) at
> Unknown.xwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 14293) at
> Unknown.KVe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 1172) at
> Unknown.yUe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 33) at Unknown.viy(<anonymous>@53)    at
> Unknown.Piy(<anonymous>@18587) at
> Unknown.zOr(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 189) at
> Unknown.$to(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 311) at
> Unknown.VBo(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 2599) at
> Unknown.mCo(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 8942) at
> Unknown.qRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 116) at
> Unknown.tRn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 568) at
> Unknown.kVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 74) at
> Unknown.nVn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 25943) at
> Unknown.cUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 150) at
> Unknown.fUn(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 24587) at
> Unknown.KJe(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 21125) at
> Unknown.Izk(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 10384) at
> Unknown.P3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 137) at
> Unknown.g4(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 8271) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 65) at
> Unknown._t(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 29) at
> Unknown.du(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 57) at
> Unknown.<anonymous>(https://ovirttest.netbulae.test/ovirt-engine/webadmin/43
> 0985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 54)Caused by:
> com.google.gwt.event.shared.UmbrellaException: Exception caught:
> (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.ps(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 3837) at
> Unknown.xs(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.C3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.F3(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 19) at
> Unknown.I2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 86) at
> Unknown.lNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 44) at
> Unknown.PMx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 83) at
> Unknown.ZMx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 5765) at
> Unknown.gwf(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 13988) at
> Unknown.x$(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 4001) at
> Unknown.Z2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 209) at
> Unknown.P2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 59) ... 25 more
> Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError)
>   __gwt$exception: <skipped>: Cannot read property 'f' of null
>      at
> Unknown.Kds(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 41) at
> Unknown.hNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 74) at
> Unknown.jNx(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23D
> FC1C8BE1C7FDD91EDAA785.cache.html at 6015) at
> Unknown.x$(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 4001) at
> Unknown.Z2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 209) at
> Unknown.I2(https://ovirttest.netbulae.test/ovirt-engine/webadmin/430985F23DF
> C1C8BE1C7FDD91EDAA785.cache.html at 28) ... 32 more
> 
> 
> 
> 
> 
> Met vriendelijke groet, With kind regards,
> 
> Jorick Astrego
> 
> Netbulae Virtualization Experts
> 
> ----------------
> 
> 	Tel: 053 20 30 270 	info at netbulae.eu 	Staalsteden 4-3A 	KvK 08198180
>  	Fax: 053 20 30 271 	www.netbulae.eu 	7547 TA Enschede 	BTW 
NL821234584B01
> 
> ----------------

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