Unable to configure HTTPS endpoint. No server certificate was specified, and the default developer certificate could not be found

Question

I am working on a fabric application where I have configured HTTPS. It is throwing an exception though I have a valid installed certificate.

Answer 1

These instructions from this blog worked for me

1. dotnet dev-certs https --clean
2. dotnet dev-certs https -t
3. Restart VS

Answer 2

I am on OSX and dotnet dev-certs https --clean and sudo dotnet dev-certs https --clean were not working for me. Finally I was able to fix it with the following steps.

1. Go into Keychain Access
2. Unlock System Keychain
3. Delete the localhost certificate
4. Run dotnet dev-certs https -t

You should now be able to run without the error.

Edit:

If, after following the above answer, you do run into an error that reads There was an error saving the HTTPS developer certificate... check out this answer https://stackoverflow.com/a/56709117/621827