I am using the 2 kv version. This version 1 seems to have changed in newer versions of vault.
I can not use your package and load my keys in 2 kv. I get all 404 HTTP errors.
.ConfigureAppConfiguration((hostingContext, config) =>
{
config.AddVaultWithToken("http://127.0.0.1:8200", "hvs.BvBP9jOOCOVxTD07MbC7C0Ek",
"/secret/data/app/passwors");
})

I am using the 2 kv version. This version 1 seems to have changed in newer versions of vault.
I can not use your package and load my keys in 2 kv. I get all 404 HTTP errors.