While creating a sample plug in for connected system if you are following the instructions and using the code snippet provided in the - reference docs, may get below errors while deploying the plugin.
Failed to retrieve input stream from plugin descriptor file: appian-plugin.xml java.lang.NullPointerException and below some lines in the log it says AppianOsgiPluginFactory.reportUnloadablePlugin [*/appian/_admin/plugins/hello-appian-csp-1.0.jar] java.lang.IllegalArgumentException: The validated string is empty
There is a problem with the plugin.xml example snippet in the reference page. instead of appian-plugin it mentions appian-plug-in and instead of plugin-info it mentions plug-in-info.
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Thanks for raising this, please submit feedback on documentation via the feedback tab (left side of the page in the link you provided) to ensure that the team in charge of docs sees this.
Thanks Chen, that was the first thing I did. The post is just to help someone in the interim.Have also requested in the feedback if the error message can be a bit elaborative/helpful - as unrecognised token, rather than just mentioning what I quoted above from the logs.