Visual Studio 2017 gives "Adding a certificate to the trusted root certificate store with an error with the following Errror"

Question

I try to start an ASP MVC application with SSL mode set to true, and whenever I start the application, I get an invitation to trust the IIS Express SSL certificate. After clicking “Yes”, the error message “Adding a certificate to the trusted root certificate store failed with the following error. Access denied.” I use Visual Studio 2017 in administrator mode. I also deleted the localhost certificate by going to MMC. Someone Has anyone else encountered this problem.

: , . . IIS Express . localhost Personal/Certificate Trusted Root Certificates, .

Answer 1

: .

, . . IIS Express . localhost Personal/Certificate Trusted Root Certificates, .

/ IIS Express, -, ( IIS Express 10), localhost Trusted Rood.

, , : https://blogs.iis.net/robert_mcmurray/how-to-trust-the-iis-express-self-signed-certificate

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• " " certlm .
• > localhost
  • ! .
• .

Answer 2

, CMD> certlm localhost .

Answer 3

:

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Answer 4

( Win 10 Visual Studio 2019 Community Edition 16.1.1) , :

• IISExpress 10 : ( ) →

• IISExpress 10 ( → ) localhost : ( ) →

• , , :

: ( ) →

• , 2988031: ( ) →

"dotnet dev-crts https --trust", :

, : , 1 , ( ) →

Update: I just realized that after changing the web application, a different error occurred several times, and I had to go through the whole process again to get it to work!

Answer 5

My mistake was actually “asp.net developer certificate not installed”, but I think the solution below will work in this case. Run the following commands at a command prompt.

dotnet dev-certs https --trust --check
echo Trust check: %errorlevel%
dotnet dev-certs https --trust -ep "%APPDATA%\ASP.NET\https\TestCert.pfx" -p TestPassword
echo Trust/Export: %errorlevel%

Link: https://github.com/Microsoft/DockerTools/issues/147#issuecomment-420433974