Assets file project.assets.json not found. Run a N

Question

I'm trying to use nopCommerce(Which is written in .NET Core) but when I want to run the project I face 52 Errors telling me Run a nuget package restore

Assets file ~\obj\project.assets.json' not found. Run a NuGet package restore to generate this file. Nop.Web.MVC.Testsote

when I use the right click on the solution and selecting Restore Nuget Packages I get this message:

All packages are already installed and there is nothing to restore.

but those 52 Errors are still there and in Tools -> NuGet Package Manager -> Manage NuGet Packages for Solution there is nothing installed on the solution,also I Recently updated my VS2017 to 15.5.4

Answer 1

run your VS as administrator after that in package manager console run dotnet restore.

Answer 2

I got the error when I created a lambda in dot net core in VS2017. What worked for me was to unload the project and load it back.

Answer 3

Closing and re-opening Visual Studio solved this issue for me, once I'd made sure the NuGet packages had been restored as per other answers posted here.

Answer 4

If simply restoring NuGet packages does not work make sure in Tools -> Options -> NuGet Package Manager -> General under Package Restore that the "Allow NuGet to download missing packages" is checked.

Then Restore NuGet Packages again OR just REBUILD after deleting obj and bin folders.

Answer 5

In case when 'dotnet restore' not works, following steps may help:

(1) Visual Studio >> Tools >> Options >> Nuget Manager >> Package Sources (2) Unchecked any third party package sources. (3) Rebuild solution.

Answer 6

little late to the answer but seems this will add value. Looking at the error - it seems to occur in CI/CD pipeline.

Just running "dotnet build" will be sufficient enough.

dotnet build

dotnet build runs the "restore" by default.