Issue Error code 1: Can't detect .NET version when requesting Let's Encrypt cert

[wst]

Could not issue an SSL/TLS certificate for xxx.be
Details
Could not assign certificate to the domain. stdout: An error occurred during domain update: An error occurred during changing of hosting settings: aspnetcfg failed: Can't detect .NET version. Possible site does not use ASP.NET

(Error code 1)
, stderr:

I have an asp.net core 3.1 website and when trying to renew let's encrypt with www options enabled (exept mail acess (not secured) (IMAP, ...)) I get this message.

If I click "ASP.NET Settings" for the domain I get

Server Error

500 PleskUtilException​

aspnetcfg failed: Can't detect .NET version. Possible site does not use ASP.NET (Error code 1)

Type	PleskUtilException
Message	aspnetcfg failed: Can't detect .NET version. Possible site does not use ASP.NET (Error code 1)
File	Agent.php
Line	196

 

[IgorG]

Try to apply the solution from this KB article Cannot configure ASP.NET for domain in Plesk: Can't detect .NET version. Possible site does not use ASP.NET
I hope it will help with fixing this ASP.NET issue.

 

[wst]

ok i'll try that.

Why is there "Microsoft ASP support", "Microsoft ASP.NET support (Version 4.8.0)"
but where is the ASP.NET Core support option? As Plesk supports ASP.NET Core and this differes a lot from ASP or ASP.NET...

 

[wst]

Ok @IgorG this fixed the issue and cert will be automatically renewed. Thanks.

Still wondering where the ASP.NET Core support option is.

 

[wst]

1. Now I'm having the same on a subdomain, but the fix isn't working.

Details
Could not assign certificate to the domain. stdout: An error occurred during domain update: An error occurred during changing of hosting settings: aspnetcfg failed: Can't detect .NET version. Possible site does not use ASP.NET

(Error code 1)
, stderr:

also when disabling and enabling ASP.NET support and as the fix suggested, the No managed code is reset in IIS --> result asp.net core 5.0 site crashes.


I got it working by:

1. first disabling asp.net support
2. enabling asp.net support
3. requesting / reloading new let's encrypt cert.
4. opening IIS --> advanced properties --> set to "No manged code" and set 32-bit support to False.

@plesk support: Question: what will happen when let's encrypt renews cert? will my site crash automatically again? or will the cert not renew??