The Cannot delete "settings.4DSettings" Syntax Error is an error that can occur in project mode 4D from a remote client. The error can occur when calling the SET DATABASE PARAMETER command with a database parameter that applies to the remote client. The details of the error mention the full path of the settings.4DSettings file.

The following is an example of the error:



In this scenario, the remote client has cached the database from the server as a compressed package (.4DZ) in which the settings.4DSettings is located. Because of the compression, the file cannot be interacted with. To solve this issue the User Settings should be Enabled. This will store the settings.4DSettings outside of the package allowing it to be modified.