Found conflicts between System.Net.Http

Question

I have several projects in my VS solution. Whenever I add \"System.Net.Http\" NuGet package to one it shows as version 4.2.0.0. Then I do the same and add same NuGet Package

Answer 1

The 6 steps that Neo posted above helped me solve my ASP.NET package problems! Thank you Neo! I was dealing with this for over a week.

I just want to share my personal notes from my experience of implementing Neo's post above.

I had an ASP.NET Web API project that targeted .Net Framework 4.6.1

Here is what I did:

• Upgrade to .Net Framework 4.7.2
• Update all NuGet packages to the latest.
• (optionally, could also do "update-package -reinstall" to make sure all packages are associated with 4.7.2)
• Consolidate packages
• I did not migrate from packages.config to PackageRefence, because you can't in ASP.NET
• Removed references from System.Net.Http and others that required it, and added them as NuGet packages.
• Removed all assembly bindings from web.config and app.config (in .Core, .Tests, .IntegrationTests libraries)
• Added binding redirects for our in-house NuGet packages that had version numbers that ended with text (n.n.n.n-beta), but removed text and had numbers only (n.n.n.n)
• Added this to all .csproj files:
  • MSBuild and
  • https://github.com/Azure/azure-webjobs-sdk/issues/1598

  true

• Make sure the packages in all packages.config files have the same versions in all projects in the solution
  • Make sure the versions are the same in the web.config
  • Make sure the versions are the same in the .csproj file, if applicable
• Use Microsoft.Net.Compilers 3.1.1 (update all .csproj files in solution, including .Tests and .IntegrationTests)
• For Data Protection API (DPAPI) that use Redis:
  • Install Microsoft.AspNetCore.DataProtection.StackExchangeRedis 2.2.5
  • StackExchange.Redis 2.0.601
  • Update System.Numerics.Vectors to 4.4.0 (note: 4.5.0 has a bug in it that prevents server connection)