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    Problem report 
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    Resolution: Fixed
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    Trivial 
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    2.2.7, 3.0.23, 3.4.14, 4.0.1
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    ESXi 5.5, vCenter 5.5, vCenter 6.5, vCenter 6.7
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        Sprint 46, Nov 2018
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        2
An error 'Cannot create group: invalid group name "".' is displayed on web frontend vmware.hv.discovery item when linking a template "Template Virt VMware".
It seems that Hypervisors and VMs are discovered and registered as hosts correctly, just the error above is displayed.