MAX giving error - Unable to locate Labview run-time engine

[CDancer]

I have LV 7.1 and 8.5.1 installed on a WinXP pc. No problems until now.

I installed some support software for a LabJack  interface, which required LV version 6.1 run-time, so I let it install that.

I now get the error whenever I run MAX:

"Unable to locate the Labview run-time engine. LVBrokerAux71 requires a version 7.1 (or compatible) Labview run-time engine...."

After closing the error boxes, MAX seems to work fine. Both versions of Labview also work. I uninstalled run-time engine 6.1 and re-installed version 8.5.1, but that made no difference. I tried to install run-time version 7.1 from the msi file but it would not let me because a later version of the run-time is installed.

What is LV Broker? Why does it not accept version 8.5.1 run-time engine? Is it possible to have 2 versions of the run-time engine installed, and if so, how?

[F._Schubert]

I would reinstall MAX (part of DAQmx I think) on the system after all required LV and runtimes.

Felix 

[david.bolt]

Dear CDancer

Thank you for contacting NI. First of all, you can have as many versions of LabVIEW run time engines you want loaded on your computer without a problem. LV Broker is installed by all drivers that uses LabVIEW testpanels like DAQmx does. In your case it seems that the LV Broker installation is corrupted or has failed. This can be rectified by overwriting the files in the specified directory listed below:

C:\Program Files\National Instruments\Shared\LabVIEW Broker

Your directory should look like the screenshot I have attached; labelled LV Broker Directory View

I have attached a ZIP File that will replace the LV Broker directory. Please try replacing your files with these if different to the screenshot and let me know how you get on. Many thanks.

[CDancer]

Thanks David. I tried that and it just caused MAX to give an immediate error and quit when run. Luckily I kept a copy of the old directory!

Anyway, I have fixed the problem. From add/remove programs I opted to repair the version 7.1.1 run-time engine using the Labview 8.5 CDs. It now seems to work fine.