Solution
This may be caused by a licensing problem, a missing driver, or that you accidentally opened 32-bit VIs in a 64-bit version of LabVIEW and do not have a specific module installed for that version.
Please follow the following suggestions to address this:
Using a LabVIEW Real-Time Target
- Install the relevant driver for the target (either NI CompactRIO, PXI Platform Services, NI-Industrial Communications for EtherCAT, etc)
- If you installed the driver before installing LabVIEW, you could be missing ADE support for LabVIEW. In this case, reinstalling the driver will resolve the issue.
- If you installed NI Device Drivers, be sure that the drivers installed are for your LabVIEW version and modules. For example, NI Device Drivers January 2018, installs drivers for LabVIEW 2017, and some drivers like NI Compact RIO 17.0 and 17.6 won't work with LabVIEW 2018.
- Check that you have all software downloaded (LabVIEW, LabVIEW Real-Time, LabVIEW FPGA) and it is still licensed in NI License Manager.
Using the Build Specifications
If you are trying to create or edit a build specification and using LabVIEW on Linux OS, this issue can happen if the installed edition does not include the LabVIEW Application Builder. To fix the issue you need to use the Application Builder which can be installed as an add-on to use with LabVIEW Full or Base until the 2021 SP1 version.