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LabVIEW Real-Time (RT) Installer Does not Install LabVIEW RT on my Host Computer

Primary Software: LabVIEW Modules>>Real-Time Module
Primary Software Version: N/A
Primary Software Fixed Version: N/A
Secondary Software: Driver Software>>NI-Serial

Problem:
When I try to install LabVIEW RT 8.20 or 8.21, I get a Cannot Install symbol from the installer for the LabVIEW RT (see Figure 1 below). Why won't LabVIEW RT install?

Solution:
This is a known issue with host computers that already have an installation of the NI-Serial driver. This problem can be verified by checking the version of NI-Serial in the ReadMe file. The ReadMe file can be found uder Start»Programs»National Instruments»NI-Serial»Readme. On systems running NI-Serial version 3.2 or greater, the LabVIEW RT v8.20 installer run on the host computer will have the display shown below (NI-Serial 3.3 or greater will have the same affect on LabVIEW RT v8.21).

Figure 1

There are some ways to put the host computer in a state where LabVIEW RT can install correctly.

1. Uninstall the version of NI-Serial currently installed on the system by using the Control Panel.
2. Install the NI-Serial for RT component using the NI-Serial installer. The version for the NI-Serial for RT installer should be the same as the NI-Serial currently on the host computer.
3. Upgrade the installation for NI-Serial. Be sure that the installation includes NI-Serial support for LabVIEW RT (default setting).

Related Links:
Drivers and Updates: NI-Serial
Product Page: Real-Time Measurement and Control
Developer Zone Tutorial: Installing National Instruments Reconfigurable I/O Hardware with LabVIEW Real-Time for RTX Targets

Attachments:

 

Report Date: 07/02/2007
Last Updated: 05/15/2009
Document ID: 4B1C2CG2

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