Compile error on PlatformIO BLEMIDI_Namespace.h

[dannyrubin]

In PlatformIO I've included the lastest library https://github.com/lathoub/Arduino-BLE-MIDI.git in my lib_deps. Upon compiling I get several errors, the first in BLEMIDI_Namespace.h stating "expected declaration before '}' token [Ln 5 Col 44] " and then several subsequent errors in BLEMIDI_Transport.h because of this , e.g. 'MIDI_NAMESPACE' is not a namespace-name [Ln 15 Col 17].

Can anyone suggest why this might be and how I can resolve it? Thanks in advance