Solution
This is a known issue. NI Package Manager sees LabVIEW 2018 SP1 installed, but does not detect it properly when installing the NI-DAQmx 20.7. You can follow the steps to fix this issue:
- Select the PACKAGES tab.
- Switch OFF Products only.
- Enter "DAQmx" in the search box to reduce the amount of packages list.
- Find the "NI-DAQmx Support for LabVIEW 2018 (32-bit)".
- Select it and click INSTALL.
