Symptoms
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On accessing a Domain, Plesk Interface or Domains > example.com > IIS Settings the following error is shown:
Error 500.19: Cannot add duplicate collection entry of type 'mimeMap' with unique key attribute 'fileExtension' set to '.srt'
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The following error appears when migrating a subscription:
Command execution failed on the source server 'source' (203.0.113.2) with non-zero exit code.
command: "C:Program Files (x86)Pleskadminbin64websrvmng" --get-mime-types --vhost-name=example.com
exit code: 1
stdout: Filename: ?C:Windowssystem32inetsrvconfigapplicationHost.config
Line number: 39996
Error: Cannot add duplicate collection entry of type 'mimeMap' with unique key attribute 'fileExtension' set to '.srt' -
Website's static content like images, .css, .js files cannot be loaded
Cause
Two identical MIME types are specified.
Resolution
Remove the MIME type specified in the error:
For a single domain
- Connect to the server via RDP
- Create a backup of the file
C:WindowsSystem32inetsrvconfigapplicationHost.config - Open file
C:WindowsSystem32inetsrvconfigapplicationHost.configwith a text editor - Remove the text in line with number mentioned in the error message and save the changes
Server wide
- Log in to the server via RDP
- Go to Internet Information Services (IIS) Manager > SERVERNAME > MIME Types
- Remove duplicate MIME type
If Plesk Interface is affected
- Connect to the server via RDP
- Open Internet Information Services (IIS) Manager > <SERVERNAME> > Sites > pleskcontolpanel > MIME Types
- Remove one MIME type with extension ".srt"