Kibana 7.5.1 Web Error: Private is not a function in bundles/commons.bundle.js

[thanhlam]

Hello,
I just wonder if anyone here have seen following problem after installing a plugin to kibana, version 7.5.1. If I removed the plugin then everything worked fine.

After installing the plugin, kibana started fine but kibana WebUI loading encountered this error.

Version: 7.5.1
Build: 27610
Error: Private is not a function
CASTVisProvider@http://X.X.X.X:5601/bundles/commons.bundle.js:13:4812915
registerVisualization@http://X.X.X.X:5601/bundles/commons.bundle.js:13:2124698
@http://X.X.X.X:5601/bundles/commons.bundle.js:13:4812820
__webpack_require__@http://X.X.X.X:5601/bundles/kibana.bundle.js:3:1463
@http://X.X.X.X:5601/bundles/commons.bundle.js:3:652714
__webpack_require__@http://X.X.X.X:5601/bundles/kibana.bundle.js:3:1463
__kbnBundles__.kibana<@http://X.X.X.X:5601/bundles/kibana.bundle.js:3:712561
__webpack_require__@http://X.X.X.X:5601/bundles/kibana.bundle.js:3:1463
requireLegacyFiles@http://X.X.X.X:5601/bundles/kibana.bundle.js:3:712163
start@http://X.X.X.X:5601/bundles/commons.bundle.js:13:1679919
_callee2$@http://X.X.X.X:5601/bundles/commons.bundle.js:13:1674885
tryCatch@http://X.X.X.X:5601/built_assets/dlls/vendors.bundle.dll.js:489:789856
invoke@http://X.X.X.X:5601/built_assets/dlls/vendors.bundle.dll.js:489:793713
defineIteratorMethods/</prototype[method]@http://X.X.X.X:5601/built_assets/dlls/vendors.bundle.dll.js:489:790980
asyncGeneratorStep@http://X.X.X.X:5601/bundles/commons.bundle.js:13:1666772
_next@http://X.X.X.X:5601/bundles/commons.bundle.js:13:1667101

With that error in kibana WebUI (http://:5601/), curl commands still worked. For example:

curl http://<IP address>:5601/app/features

[majagrubic (Maja)]

Can you provide some more information? Are you adding your own plugin? How are you starting Kibana?

[thanhlam]

Hi,

We built our own plugin back with kibana 6.8. It was working then. But, I haven't checked that for a while and now we have kibana 7.5.1. It could be some dependencies or incompatible levels of node.js and so on. There are so many dependencies in effect here.

The OS is RHEL 8.4 on ppc64le architecture.
kibana is started by using systemctl start kibana.
Please let me know if any other info is needed for debugging this problem.

Thanks!

[majagrubic (Maja)]

Can you disable your plugin and try to start Kibana without it?

[thanhlam]

Yes, if I removed the plugin, kibana worked as usual. It's confusing though that the error pointed to commons.bundle.js. Also, kibana shouldn't be blocking access to the WebUI because of a plugin problem. Some pointers on how to debug the plugin would be appreciated. Thanks!