I have recently taken control of a project which uses the version 13.2450.0.39 of your components.
In my PC, I hadn't installed your components yet. So, this morning I have downloaded and installed the last version of your components(13.4451.0.53).
After upgrading the proyect using "Project Migration" on your Dashboard(under utilities), some libraries still missing.
I have reinstalled the components in the gac, as you recomended here: https://www.syncfusion.com/forums/122117/syncfusion-ej-mvc-is-missing-from-gac
However, the installator throws a lot of errors:
File not found in the disk path :C:\Program Files (x86)\Syncfusion\Essential Studio\184.108.40.206\precompiledassemblies\220.127.116.11\4.6\AjaxMin.dll
File not found in the disk path :C:\Program Files (x86)\Syncfusion\Essential Studio\18.104.22.168\precompiledassemblies\22.214.171.124\MVC\MVC6\Syncfusion.Chart.MVC.dll
File not found in the disk path :C:\Program Files (x86)\Syncfusion\Essential Studio\126.96.36.199\precompiledassemblies\188.8.131.52\4.6\Syncfusion.DemoUtility.dll
File not found in the disk path :C:\Program Files (x86)\Syncfusion\Essential Studio\184.108.40.206\precompiledassemblies\220.127.116.11\MVC\MVC6\Syncfusion.DocIO.MVC.dll
File not found in the disk path :C:\Program Files (x86)\Syncfusion\Essential Studio\18.104.22.168\precompiledassemblies\22.214.171.124\MVC\MVC6\Syncfusion.EJ.MVC.dll << This is the missing DLL, referenced on my project.
A2) We are providing the Syncfusion MVC 6 assemblies only as Nuget packages, these assemblies will not be present in precompiled assemblies location. So while running the Assembly Manager, the Assembly Manager log displayed those assemblies in missing state . We have already removed the MVC6 information from Assembly Manager log and these changes were included in our 2015 Vol 4 Service pack 1 release.
Note: if you have installed selected platforms only in Syncfusion Essential Studio v126.96.36.199 setup, then the assemblies of the platforms which are not installed will not be present in Precompiled assemblies location. So, the Assembly Manager log will display those assemblies in missing state. These are not errors and will not affect the development.
Q3) Syncfusion.EJ.MVC.dll << This is the missing DLL, referenced on my project.
A3) As we provide MVC6 assemblies only as Nuget packages, you need to refer the dependent assemblies from nuget package in MVC 6 application instead of GAC. You can find the nuget packages from the following location.