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# 14. Troubleshooting

When double clicking on a DDS block to view the block parameters, an error dialog is shown with the message: Error evaluating ‘MaskDialog’ callback of SubSystem block (mask).

Cause: The OSPL environment variables have not been setup correctly.

Solution: Open a command shell and run the script to setup OSPL environment variables.

> Linux

> - Open a Linux terminal.

> - Navigate to directory containing release.com file.

>   /INSTALLDIR/ADLINK/Vortex_v2/Device/VortexOpenSplice/6.8.x/HDE/x86_64.linux

> - Run release.com. (Type in “. release.com” at command line.)

> Windows

> - Open a command prompt.

> - Navigate to directory containing release.bat file.

>   INSTALLDIR/ADLINK/Vortex_v2/Device/VortexOpenSplice/6.8.x/HDE/x86_64.win64

> - Run release.bat. (Type in “release.bat” at command line.)

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