Can't build using Cake

[politas]

Trying to build on Linux, I get this message early in the build process:

========================================
Build-DotNet
========================================

>>>> xbuild tool is deprecated and will be removed in future updates, use msbuild instead <<<<

And then the Repack fails:

========================================
Repack-Ckan
========================================
INFO: IL Repack - Version 2.0.12
INFO: Target platform directory resolved to /usr/lib/mono/4.0
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CmdLine.exe
INFO: Failed to load debug information for /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CmdLine.exe
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/Autofac.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CKAN.dll
INFO: Failed to load debug information for /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CKAN.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/ChinhDo.Transactions.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CommandLine.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CurlSharp.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/ICSharpCode.SharpZipLib.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/INIFileParser.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/Newtonsoft.Json.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/log4net.dll
INFO: Adding assembly for merge: /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CKAN-GUI.exe
INFO: Failed to load debug information for /mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CKAN-GUI.exe
WARN: Duplicate Win32 resource with id=0, parents=[3,1], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,2], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,3], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,4], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,5], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,6], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[3,7], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[14,32512], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
WARN: Duplicate Win32 resource with id=0, parents=[24,1], name= in assembly CKAN-GUI, Version=1.22.0.0, Culture=neutral, PublicKeyToken=null, ignoring
INFO: Processing references
INFO: Processing types
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Renaming <>f__AnonymousType0`2 into <4806e92e-843f-4379-95a6-dbb6225ce8a7><>f__AnonymousType0`2
INFO: Merging <Module>
INFO: Renaming <PrivateImplementationDetails> into <2b2ef58d-79ea-40d8-958e-401530b32794><PrivateImplementationDetails>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Renaming <PrivateImplementationDetails> into <daf1b46e-f1b3-47cf-8b97-a9c9e63b61cd><PrivateImplementationDetails>
INFO: Merging <Module>
INFO: Merging <Module>
INFO: Processing types
INFO: Processing resources
WARN: [System.Runtime.CompilerServices.CompilationRelaxationsAttribute] attribute wasn't merged because of inconsistency across merged assemblies
INFO: Fixing references
System.ComponentModel.Win32Exception (0x80004005): ApplicationName='/tmp/tmp7cc9377d.tmp', CommandLine='-r -p:/mnt/raid/Repositories/monodevelop/CKAN/_build/out/CmdLine/Debug/bin/CmdLine.pdb -s:srcsrv', CurrentDirectory='', Native error= Access denied
  at System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) [0x002dc] in <76fe267e1bf64ad1a7865d07a5edd3f0>:0 
  at System.Diagnostics.Process.Start () [0x0003a] in <76fe267e1bf64ad1a7865d07a5edd3f0>:0 
  at (wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start ()
  at System.Diagnostics.Process.Start (System.Diagnostics.ProcessStartInfo startInfo) [0x0001b] in <76fe267e1bf64ad1a7865d07a5edd3f0>:0 
  at ILRepacking.Steps.SourceServerData.PdbStr.Execute (System.String arguments) [0x0002d] in <b2eacf7d68f042b0849ffe35ef7f670c>:0 
  at ILRepacking.Steps.SourceServerData.PdbStr.Read (System.String pdb) [0x0000c] in <b2eacf7d68f042b0849ffe35ef7f670c>:0 
  at System.Linq.Enumerable+WhereSelectEnumerableIterator`2[TSource,TResult].ToArray () [0x0002b] in <c716d84e34fc4c408a98d9a0c1024723>:0 
  at System.Linq.Enumerable.ToArray[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x0001f] in <c716d84e34fc4c408a98d9a0c1024723>:0 
  at ILRepacking.Steps.SourceServerData.SourceServerDataRepackStep.Perform () [0x0003e] in <b2eacf7d68f042b0849ffe35ef7f670c>:0 
  at ILRepacking.ILRepack.Repack () [0x002dd] in <b2eacf7d68f042b0849ffe35ef7f670c>:0 
  at ILRepacking.Application.Main (System.String[] args) [0x0004a] in <b2eacf7d68f042b0849ffe35ef7f670c>:0 
An error occurred when executing task 'Repack-Ckan'.

Seriously hoping @dbent has some time to look at this.

[dbent]

xbuild being deprecated is just a warning since Mono 5 now ships with the open source msbuild which is the same tool used on Windows. Cake will have to update its DotNetBuild task to check if msbuild is available on Mono installations and use that in preference to xbuild, if an issue for that doesn't already exist I'll probably create one later today, but for now this is safe to ignore.

The second issue seems to be specific to ILRepack 2.0.12 on Mono 5 and is resolved for me locally by using ILRepack 2.0.13. I'll have a PR in a bit which bumps the version.

[dbent]

Fixed in #2049