Bug 353133 – dev-lang/mono-2.8.1-r1 wrong registration of Npgsql.dll in GAC

• Status: RESOLVED OBSOLETE
• Product: Gentoo Linux

[Description Arsen Shnurkov 2011-01-29 12:30:24 UTC]

# gacutil -l Npgsql
The following assemblies are installed into the GAC:
Npgsql, Version=2.0.0.0, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7
Npgsql, Version=2.0.11.0, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7
Npgsql, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7
Number of items = 3


Versions 2.0.0.0 and 4.0.0.0 are registred during "emerge mono". They shouldn't.
Version 2.0.11.0 is the latest version, which is registred according to 
http://npgsql.projects.postgresql.org/docs/manual/UserManual.html


Web site loads version 4.0.0.0 (it comes from mono-2.8.1 package).
This leads to the following error:

Cannot cast from source type to destination type.
Description: HTTP 500. Error processing request.

Stack Trace: 

System.InvalidCastException: Cannot cast from source type to destination type.
  at Npgsql.NpgsqlFactory.CreateConnection () [0x00000] in /var/tmp/portage/dev-lang/mono-2.8.1-r1/work/mono-2.8.1/mcs/class/Npgsql/Npgsql/NpgsqlFactory.cs:64

[Comment 1 Peter Alfredsen (RETIRED) 2011-02-02 11:47:24 UTC]

Your app should load the assembly it was compiled against or fail to compile. I presume the failure to do so is due to the bug in URL.

[Comment 2 Arsen Shnurkov 2011-02-02 12:31:05 UTC]

> the failure to do so is due to the bug in URL.

In which URL ?

[Comment 3 Peter Alfredsen (RETIRED) 2011-02-02 14:03:02 UTC]

(In reply to comment #2)
> > the failure to do so is due to the bug in URL.
> 
> In which URL ?
> 

The clicky thingamajig below "Assigned To"

[Comment 4 Alistair Bush (RETIRED) 2011-02-02 18:49:19 UTC]

Could you give us more detail on the application your running,  is it something your developing,  or is it thirdparty?

As a workaround have you tried adding assemblyBindings to your web.config?

<configuration>
   <runtime>
      <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
         <dependentAssembly>
            <assemblyIdentity name="myAssembly"
                              publicKeyToken="32ab4ba45e0a69a1"
                              culture="neutral" />
            <bindingRedirect oldVersion="1.0.0.0"
                             newVersion="2.0.0.0"/>
            <codeBase version="2.0.0.0"
                      href="http://www.litwareinc.com/myAssembly.dll"/>
         </dependentAssembly>
      </assemblyBinding>
   </runtime>
</configuration>

[Comment 5 Pacho Ramos 2011-07-04 10:24:06 UTC]

(In reply to comment #4)
> Could you give us more detail on the application your running,  is it something
> your developing,  or is it thirdparty?
> 
> As a workaround have you tried adding assemblyBindings to your web.config?
> 
> <configuration>
>    <runtime>
>       <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
>          <dependentAssembly>
>             <assemblyIdentity name="myAssembly"
>                               publicKeyToken="32ab4ba45e0a69a1"
>                               culture="neutral" />
>             <bindingRedirect oldVersion="1.0.0.0"
>                              newVersion="2.0.0.0"/>
>             <codeBase version="2.0.0.0"
>                       href="http://www.litwareinc.com/myAssembly.dll"/>
>          </dependentAssembly>
>       </assemblyBinding>
>    </runtime>
> </configuration>

Any news here? (with latest mono-2.10 please)

[Comment 6 Pacho Ramos 2011-09-10 11:42:24 UTC]

(In reply to comment #5)
> (In reply to comment #4)
> > Could you give us more detail on the application your running,  is it something
> > your developing,  or is it thirdparty?
> > 
> > As a workaround have you tried adding assemblyBindings to your web.config?
> > 
> > <configuration>
> >    <runtime>
> >       <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
> >          <dependentAssembly>
> >             <assemblyIdentity name="myAssembly"
> >                               publicKeyToken="32ab4ba45e0a69a1"
> >                               culture="neutral" />
> >             <bindingRedirect oldVersion="1.0.0.0"
> >                              newVersion="2.0.0.0"/>
> >             <codeBase version="2.0.0.0"
> >                       href="http://www.litwareinc.com/myAssembly.dll"/>
> >          </dependentAssembly>
> >       </assemblyBinding>
> >    </runtime>
> > </configuration>
> 
> Any news here? (with latest mono-2.10 please)