Can't load muon nexus files on my Ubuntu system

[mantid-builder]

Original Reporter: @jzikovsky

Original Owner: @jzikovsky

Tried to load 'Code/Mantid/Test/Nexus/Muon-v2/argus0026287.nxs' using LoadMuonNexus v2. I get:

Name: OutputWorkspace, Value: yaddayadda, Default?: No, Direction: Output
Name: SpectrumMin, Value: 0, Default?: Yes, Direction: Input
Name: SpectrumMax, Value: 2147483647, Default?: Yes, Direction: Input
Name: SpectrumList, Value: , Default?: Yes, Direction: Input
Name: AutoGroup, Value: 0, Default?: Yes, Direction: Input
Name: EntryNumber, Value: 0, Default?: Yes, Direction: Input
Error in execution of algorithm LoadMuonNexus:
Unable to open File: in /home/janik/Code/Mantid/Test/Nexus/Muon-v2/argus0026577.nxs

None of those NXS files in that directory load for me.

[mantid-builder]

This issue was originally trac ticket 1574