Application requires log4net assembly be install in GAC first

Question

When trying to install a VS2015 console app onto one of my servers, I get this error:

http://imgur.com

Answer 1

Problem solved.

First I tried the answer from Nino and gacutil.exe is not installed on that server, so I could not run that cmd.

After going through the project in Visual Studio 2015 properties/Publish settings, under Install Mode and settings, click button "Application Files..." and make sure that dll file is "included" in publishing. The dll i needed was not included, but after including it, re-published, everything installed just fine.

Answer 2

you should install it into GAC using Gacutil.exe. Like this:

gacutil /i (path to dll)\log4net.dll

for additional documentation, see here

gacutil can be found here

C:\Program Files (x86)\Microsoft SDKs\Windows\xxxx\bin\NETFX yyyTools

where xxx is windows version (ie 8.1a) and yyy .net framework version (ie 4.6.1)

EDIT: call gacutil.exe from Developer command prompt

Start -> Visual Studio 2015 Visual Studio Tools -> Developer Command Prompt for VS2015