Error message when trying to load RavenAppender (from VS Debug Output)

gistfile1.txt

=== Pre-bind state information ===
LOG: User = ...
LOG: DisplayName = log4net.Raven
 (Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: log4net.Raven | Domain ID: 3
WRN: A partial bind occurs when only part of the assembly display name is provided.
WRN: This might result in the binder loading an incorrect assembly.
WRN: It is recommended to provide a fully specified textual identity for the assembly,
WRN: that consists of the simple name, version, culture, and public key token.
WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue.
LOG: Appbase = file:///C:/PATH-TO-APPBASE
LOG: Initial PrivatePath = C:\PATH-TO-BIND
Calling assembly : log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\PATH-TO-APP\web.config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///C:/Users/ME/AppData/Local/Temp/Temporary ASP.NET Files/root/2b72f074/7d185da1/log4net.Raven.DLL.
LOG: Attempting download of new URL file:///C:/Users/ME/AppData/Local/Temp/Temporary ASP.NET Files/root/2b72f074/7d185da1/log4net.Raven/log4net.Raven.DLL.
LOG: Attempting download of new URL file:///C:/Code/PATH-TO-APP/bin/log4net.Raven.DLL.
LOG: Attempting download of new URL file:///C:/Code/PATH-TO-APP/bin/log4net.Raven/log4net.Raven.DLL.
LOG: Attempting download of new URL file:///C:/Users/ME/AppData/Local/Temp/Temporary ASP.NET Files/root/2b72f074/7d185da1/log4net.Raven.EXE.
LOG: Attempting download of new URL file:///C:/Users/ME/AppData/Local/Temp/Temporary ASP.NET Files/root/2b72f074/7d185da1/log4net.Raven/log4net.Raven.EXE.
LOG: Attempting download of new URL file:///C:/Code/PATH-TO-APP/bin/log4net.Raven.EXE.
LOG: Attempting download of new URL file:///C:/Code/PATH-TO-APP/bin/log4net.Raven/log4net.Raven.EXE.

log4net:ERROR Appender named [RavenAppender] not found.