Goal is to upgrade our sitecore VS solution from 8.2 update 1 to sitecore 9 update 1.
Thought this would be easier but I keep getting this error below when trying to upgrade my sitecore nuget packages from 8.2 update 1 to sitecore 9.0 update 1.
Package 'Sitecore.Abstractions.9.0.171219' does not exist in folder 'C:\Work\source\repo\sitecore9poc\packages'
Could not install package 'Sitecore.Abstractions 9.0.171219'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.5.2', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author. ========== Finished ==========
I tried updating the Target Framework from 4.5 to 4.6 and same issue.