[Mono-ue] Mono for UE build issues

Kei Nakazawa muo at muo.jp
Fri Oct 31 20:14:45 UTC 2014 

Hi,

with UnrealAgent.cs & UnrealAgentConnection.cs, building UE 4 Editor
finished w/o errors. Great forward step.

But I ran into the error below once I perform Product -> Run (Cmd+R) and
got UE4 splash screen (not reached to Unreal Project Browser).

[2014.10.31-19.56.36:569][  0]BlueprintLog: New page: Editor Load
dyld: lazy symbol binding failed: Symbol not found:
_mono_trace_set_log_handler
  Referenced from:
/Users/keinakazawa/Documents/workspace/UnrealEngine/Engine/Plugins/XamarinUE4/MonoRuntime/Binaries/Mac/UE4Editor-MonoRuntime-Mac-Debug.dylib
  Expected in: /usr/local/lib/libmonosgen-2.0.1.dylib

dyld: Symbol not found: _mono_trace_set_log_handler
  Referenced from:
/Users/keinakazawa/Documents/workspace/UnrealEngine/Engine/Plugins/XamarinUE4/MonoRuntime/Binaries/Mac/UE4Editor-MonoRuntime-Mac-Debug.dylib
  Expected in: /usr/local/lib/libmonosgen-2.0.1.dylib


I have Mono 3.4.0 installed on /usr/local/Cellar/mono/3.4.0 and symlinked
to /usr/local/lib/libmonosgen-2.0.1.dylib.

I just temporarily unlinked this binary (because I won't get any troubles
w/o this because I also have installed Mono by installer binary).
$ brew unlink mono

I performed Cmd+R again and got:

dyld: lazy symbol binding failed: can't resolve symbol
_mono_set_signal_chaining in
/Users/keinakazawa/Documents/workspace/UnrealEngine/Engine/Plugins/XamarinUE4/MonoRuntime/Binaries/Mac/UE4Editor-MonoRuntime-Mac-Debug.dylib
because dependent dylib #10 could not be loaded
dyld: can't resolve symbol _mono_set_signal_chaining in
/Users/keinakazawa/Documents/workspace/UnrealEngine/Engine/Plugins/XamarinUE4/MonoRuntime/Binaries/Mac/UE4Editor-MonoRuntime-Mac-Debug.dylib
because dependent dylib #10 could not be loaded

it seems UE4 Editor simply can't find Mono runtime lib (which is placed at
Engine/Plugins/XamarinUE4/MonoRuntime/Source/ThirdParty/mono/lib/Mac/libmonosgen-2.0.dylib)
this time.

So I copied Mono for UE bundled libmonosgen-2.0.dylib to lib dir:
$ cp ./MonoRuntime/Source/ThirdParty/mono/lib/Mac/libmonosgen-2.0.dylib
/usr/local/lib/
and symlinked as 2.0.1
$ ln -s /usr/local/lib/libmonosgen-2.0.dylib
/usr/local/lib/libmonosgen-2.0.1.dylib
then performing Cmd+R to finally get to "Unreal Project Browser" screen.

Hope it helps somebody and maybe improve build process :)

Regards, Kei.

2014-11-01 1:00 GMT+09:00 Kei Nakazawa <muo at muo.jp>:

> Michael,
> thanks for uploading gist.
>
> I changed
>
> Engine/Plugins/XamarinUE4/MonoMainDomain/UnrealEngine.MainDomain.csproj:
> >  57     <Compile
> Include="..\XamarinStudio\XamarinStudio.Unreal\Projects\UnrealAgentConnection.cs">
> >  67     <Compile
> Include="..\XamarinStudio\XamarinStudio.Unreal\Projects\UnrealAgent.cs">
> to
> >  57     <Compile Include="UnrealAgentConnection.cs">
> >  67     <Compile Include="UnrealAgent.cs">
> then put the files on https://gist.github.com/mhutch/8513c1893c8b61eb4d24
> into the same directory and it seems build process continued (not yet
> finished, but no error so far).
>
> Regards, Kei.
>
>
> 2014-11-01 0:48 GMT+09:00 Michael Hutchinson <m.j.hutchinson at gmail.com>:
>
>> In the meantime, here are the two missing files:
>>
>> https://gist.github.com/mhutch/8513c1893c8b61eb4d24
>>
>> On 31 October 2014 11:35, Michael Hutchinson <m.j.hutchinson at gmail.com>
>> wrote:
>> > Sorry, looks like we accidentally omitted a file. Working on a new
>> > package right now.
>> >
>> > On 31 October 2014 11:21, Peter Petermann <ppetermann80 at gmail.com>
>> wrote:
>> >> Alright, so i tried to follow the installation guide at
>> >> http://mono-ue.github.io/installation.html
>> >>
>> >> and when i come to rebuilding with the patches applied, i get the
>> error:
>> >> Error 1 error : Expected C# dependency
>> >>
>> E:\dev\unreal\UnrealEngine\Engine\Intermediate\Build\Win64\Mono\..\..\..\..\Plugins\XamarinUE4\MonoMainDomain\..\XamarinStudio\XamarinStudio.Unreal\Projects\UnrealAgentConnection.cs
>> >> to exist.
>> >>
>> >> looking closer at that path, that whole path doesn't exist
>> >>
>> >> It will find the \dev\unreal\UnrealEngine\Engine\Plugins\XamarinUE4
>> path,
>> >> but within that there is no subdirectory named XamarinStudio, thus no
>> >> further subdirectories and no UnrealAgentConnections.cs
>> >>
>> >> i had a look at the zip that i could download after last nights mail,
>> and it
>> >> doesnt contain that folder either.
>> >>
>> >> best regards,
>> >> PP
>> >>
>> >> 2014-10-31 16:19 GMT+01:00 Miguel de Icaza <miguel at xamarin.com>:
>> >>>
>> >>> Please do post the error messages.
>> >>>
>> >>> On Fri, Oct 31, 2014 at 7:26 AM, Peter Petermann <
>> ppetermann80 at gmail.com>
>> >>> wrote:
>> >>>>
>> >>>> Hi,
>> >>>>
>> >>>> I'm having a build issue on windows (it seems there are files
>> missing),
>> >>>> can i post the error message here?
>> >>>>
>> >>>> regards,
>> >>>> PP
>> >>>>
>> >>>> 2014-10-31 11:40 GMT+01:00 Kei Nakazawa <muo at muo.jp>:
>> >>>>>
>> >>>>> Hi,
>> >>>>>
>> >>>>> like many of you subscribed here, I received a download link of
>> preview
>> >>>>> today. Then I gave a shot of building and see certain build error
>> on OSX.
>> >>>>>
>> >>>>> I just wanted to paste the error lines on this list but I stopped:
>> >>>>>
>> >>>>> I'm wondering about NDA I agreed for downloading the preview
>> package. It
>> >>>>> prevents us from disclosing internal information publicly (because
>> of
>> >>>>> course, it's a NDA). This list (mono-ue at lists.ximian.com ) is an
>> open one
>> >>>>> and anybody w/o NDA can access archives. So, if we strictly follow
>> the NDA,
>> >>>>> we shouldn't post details about build errors here. Instead, we
>> should post
>> >>>>> error reports to some bugzilla or mailing lists privately.
>> >>>>>
>> >>>>> Do you have some guidelines?
>> >>>>>
>> >>>>> Regards, Kei.
>> >>>>>
>> >>>>> _______________________________________________
>> >>>>> Mono-ue mailing list
>> >>>>> Mono-ue at lists.ximian.com
>> >>>>> http://lists.ximian.com/mailman/listinfo/mono-ue
>> >>>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Peter Petermann
>> >>>> Email: ppetermann80 at gmail.com - get my public PGP key from SKS
>> Keyservers
>> >>>> PGP Key:
>> >>>>
>> http://pool.sks-keyservers.net:11371/pks/lookup?op=get&search=0x0E6DBD675836A5C7
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Peter Petermann
>> >>>> Email: ppetermann80 at gmail.com - get my public PGP key from SKS
>> Keyservers
>> >>>> PGP Key:
>> >>>>
>> http://pool.sks-keyservers.net:11371/pks/lookup?op=get&search=0x0E6DBD675836A5C7
>> >>>>
>> >>>> 2014-10-31 11:40 GMT+01:00 Kei Nakazawa <muo at muo.jp>:
>> >>>>>
>> >>>>> Hi,
>> >>>>>
>> >>>>> like many of you subscribed here, I received a download link of
>> preview
>> >>>>> today. Then I gave a shot of building and see certain build error
>> on OSX.
>> >>>>>
>> >>>>> I just wanted to paste the error lines on this list but I stopped:
>> >>>>>
>> >>>>> I'm wondering about NDA I agreed for downloading the preview
>> package. It
>> >>>>> prevents us from disclosing internal information publicly (because
>> of
>> >>>>> course, it's a NDA). This list (mono-ue at lists.ximian.com ) is an
>> open one
>> >>>>> and anybody w/o NDA can access archives. So, if we strictly follow
>> the NDA,
>> >>>>> we shouldn't post details about build errors here. Instead, we
>> should post
>> >>>>> error reports to some bugzilla or mailing lists privately.
>> >>>>>
>> >>>>> Do you have some guidelines?
>> >>>>>
>> >>>>> Regards, Kei.
>> >>>>>
>> >>>>> _______________________________________________
>> >>>>> Mono-ue mailing list
>> >>>>> Mono-ue at lists.ximian.com
>> >>>>> http://lists.ximian.com/mailman/listinfo/mono-ue
>> >>>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Peter Petermann
>> >>>> Email: ppetermann80 at gmail.com - get my public PGP key from SKS
>> Keyservers
>> >>>> PGP Key:
>> >>>>
>> http://pool.sks-keyservers.net:11371/pks/lookup?op=get&search=0x0E6DBD675836A5C7
>> >>>>
>> >>>> _______________________________________________
>> >>>> Mono-ue mailing list
>> >>>> Mono-ue at lists.ximian.com
>> >>>> http://lists.ximian.com/mailman/listinfo/mono-ue
>> >>>>
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> Peter Petermann
>> >> Email: ppetermann80 at gmail.com - get my public PGP key from SKS
>> Keyservers
>> >> PGP Key:
>> >>
>> http://pool.sks-keyservers.net:11371/pks/lookup?op=get&search=0x0E6DBD675836A5C7
>> >>
>> >> _______________________________________________
>> >> Mono-ue mailing list
>> >> Mono-ue at lists.ximian.com
>> >> http://lists.ximian.com/mailman/listinfo/mono-ue
>> >>
>> >
>> >
>> >
>> > --
>> > Michael Hutchinson ~ https://mhut.ch
>>
>>
>>
>> --
>> Michael Hutchinson ~ https://mhut.ch
>> _______________________________________________
>> Mono-ue mailing list
>> Mono-ue at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/mono-ue
>>
>
>
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