Installed Labview 2019 and corrupted Signal Express 2012

[seanjournot]

My lab recently purchased a copy of LabVIEW base 2019. I attempted to install it on our lab computer and now Signal Express 2012 crashes on start up. Initially after installation our DAQ was no longer being recognized in device manager and Signal Express would not launch. I've unsuccessfully taken the following steps to resolve this issue:

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Uninstalled latest DAQmx drivers and installed DAQmx 17.5

               DAQ is now recognized in device manager; LabVIEW no longer has the option to use DAQmx physical

               channels; Signal Express 2012 crashes on startup.

Uninstalled DAQmx 17.5 and LabView then installed DAQmx 15.5.1

               Signal Express 2012 still crashes on start up

Uninstalled and reinstalled Signal Express 2012

               Signal Express 2012 still crashes on startup

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Hardware/OS:

Windows 7

cDAQ-9172 chassis

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I was certain that the current version, and version 17.5.1, DAQmx driver was simply not compatible with Signal Express 2012 and that was the root of our issues. I believe that something else is going on now all though I have no idea what it could be. The next step for us is to uninstall all NI software and then reinstall Signal Express 2012, LabVIEW (2015?) and DIAdem 2017. If anyone knows a simpler solution I would be very grateful if you could share it.

[Kyle97330]

NI products usually only go with each other ± 3 versions (at least for anything 2014+)... you're trying to do seven.

Would it be possible to use SignalExpress 2015 or did you not renew the license and you're stuck at 2012?  If you can go to SignalExpress 2015, then it should at least be compatible with 2018 versions.

If you're stuck at 2012, then probably you don't want to go more recent than LabVIEW 2015.

I'm not totally sure, but I think most LabVIEW licenses are for "up to" the version they were purchased on, not exactly one version, so you might be able to use that 2019 license to install 2018 or 2015.

[seanjournot · Accepted solution]

I managed to resolve this issue. After uninstalling all national instruments software I then reinstalled everything in the following order.

LabVIEW 2015

DAQmx 15.5.1

Signal Express 2012

DIAdem 2017

Everything is up and running now; apparently the order in which everything is installed matters. LabVIEW 2019 also comes with a large number of peripheral programs and a package manager which may not be compatible with previous versions of LabVIEW. 

[Gregory]

So did you re-install LV 2019, or only 2015?

[seanjournot]

Only 2015