One option would be to uninstall LabVIEW completely, restart the machine, check for remaining files and delete them if needed, and install LabVIEW again. This might not be convenient.
Another option is to repair the broken VI(s) performing the following steps:
- Open C:\Program Files (x86)\National Instruments\LabVIEW 2017\vi.lib\Utility\NIReport.llb\NI_report.lvclass (change the path according to your installation of LabVIEW).
- Right-click the virtual sub-folder report and click "Add » File":
- Locate C:\Program Files (x86)\National Instruments\LabVIEW 2017\vi.lib\Utility\NIReport.llb\Read generate report.vi (change path accordingly to step 1) and click Add File.
- Locate the newly added file in the Project Explorer, right-click it and click Properties.
- LabVIEW's might ask now if Read generate report.vi should be bound to NI_report.lvclass. Confirm this.
- Save and close NI_report.lvclass.