Offline Message and Mute List module fails to recompile in Ubuntu Lucid/OpenSim 0.7.0.2

context: OS 0.7.0.2, ubuntu lucid

log is attached


==========================
NSL_MODULES
==========================
Prebuild v2.0.4
Copyright (c) 2004-2008
Matthew Holmes (matthew@wildfiregames.com),
Dan Moorehead (dan05a@gmail.com),
David Hudson (jendave@yahoo.com),
Rob Loach (http://www.robloach.net),
C.J. Adams-Collier (cjac@colliertech.org),
See 'prebuild /usage' for help

Creating NAnt build files
...Creating project: NSLModules.Messaging.MuteList

NAnt 0.85 (Build 0.85.2478.0; release; 10/14/2006)
Copyright (C) 2001-2006 Gerry Shaw
http://nant.sourceforge.net

Buildfile: file:///home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/OpenSim.build
Target framework: Mono 2.0 Profile
Target(s) specified: clean

[echo] Using 'mono-2.0' Framework

clean:

[echo] Deleting all builds from all configurations
[nant] /home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLModules.Messaging.MuteList.dll.build clean
Buildfile: file:///home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLModules.Messaging.MuteList.dll.build
Target framework: Mono 2.0 Profile
Target(s) specified: clean


clean:


BUILD SUCCEEDED

Total time: 0 seconds.


BUILD SUCCEEDED

Total time: 0.1 seconds.

NAnt 0.85 (Build 0.85.2478.0; release; 10/14/2006)
Copyright (C) 2001-2006 Gerry Shaw
http://nant.sourceforge.net

Buildfile: file:///home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/OpenSim.build
Target framework: Mono 2.0 Profile
Target(s) specified: build

[echo] Using 'mono-2.0' Framework

init:


Release:

[echo] Platform unix

build:

[nant] /home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLModules.Messaging.MuteList.dll.build build
Buildfile: file:///home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLModules.Messaging.MuteList.dll.build
Target framework: Mono 2.0 Profile
Target(s) specified: build


build:

[echo] Build Directory is /home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/bin/Release
[mkdir] Creating directory '/home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/bin/Release'.
[csc] Compiling 1 files to '/home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/bin/Release/NSLModules.Messaging.MuteList.dll'.
[csc] /home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLMuteListModule.cs(219,79): error CS0241: Default parameter specifiers are not permitted
[csc] /home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLMuteListModule.cs(219,92): error CS0241: Default parameter specifiers are not permitted
[csc] Compilation failed: 2 error(s), 0 warnings

BUILD FAILED - 0 non-fatal error(s), 2 warning(s)

/home/dilis/OPT/298ALPHA/opensim-0.7.0.2-source/nsl.modules/OpenSim.NSLModules/Messaging/MuteList/NSLModules.Messaging.MuteList.dll.build(14,6):
External Program Failed: /usr/lib/mono/2.0/gmcs.exe (return code was 1)

Total time: 0.3 seconds.


BUILD FAILED

Nested build failed. Refer to build log for exact reason.

Total time: 0.4 seconds.