Oct 08, 2019 08:33 AM|Yang Shen|LINK
Sorry that i miss the real problem, the reason is that
vs2012 does not support .NETStandard (Used for Latest Newtonsoft Json Parser Lib.
Please change the version of your SendGrid package to an older version so that it can denpend on an older version Newtonsoft.Json package.
As i can see in my VS2017, the earlies version of SendGrid that depend on Newtonsoft.Json (>= 9.0.1) is SendGrid 7.0.7.
Thus, you can install SendGrid package whose version is ealier than 7.0.7.
PM> Install-Package SendGrid -Version 7.0.6
All below version you can try:
If possible, update your vs will be a better choice, newer version of VS provide much more convenient practice of these nuget package things.