[Users] SimulationTools/h5mma: Unable to communicate with closed link

[Bernard Kelly]

Hi. Today's silly question:

I'm trying to use SimulationTools to work with some Carpet HDF5 data.
I've loaded SimulationTools & h5mma with no apparent issues, but this
line fails:

> ToDataRegion[ ImportHDF5[  "<full path to mydata.h5", {"Datasets",  "mydataset"}]]

... with the error message:

LinkObject::linkd: Unable to communicate with closed link
LinkObject['/Users/bjkelly1/Library/Mathematica/Applications/h5mma/MacOSX-x86-64/h5mma',397,6].
>>

I can verify that the executable is where that error message says it
is, and it's world-runnable. Any ideas why it's not working?

thanks

Beany

P.S. I've never used SimulationTools or h5mma before. I followed the
simple installation instructions from
http://simulationtools.org/Documentation/English/Tutorials/Introduction.html