Unable to pack a Nuget Package on VSTS Unable to cast object of type 'System.String' to type 'NuGet.Frameworks.NuGetFramework'

Question

On running \'pack\' I am getting the following error...

2017-07-05T10:37:09.7762333Z ##[section]Starting: NuGet pack
2017-07-05T10:37:09.7762333Z ===========         


        

Answer 1

I had this same issue with my .net standard 2.0 class library I was pack into a nuget package. Here is a screenshot of the step you need to add to replace nuget pack step.

Step Type To Add

Here is how I configured the step