Setup detected existing files in the application files instance specific installation folder {0}. The folder must be empty ...

Setup detected existing files in the application files instance specific installation folder {0}.
The folder must be empty for Setup to proceed.
Deleting the existing instance specific files will remove the application customizations. To save your customizations, choose a different instance name or move the files.
Do you want to delete the files currently in the folder?

Setup could not update the AJAX assembly entry in the Web configuration file. The AJAX assembly name is the invalid string: ... Setup could not update the Expression Builder entry in Web server configuration file. The Expression Builder name or type ... Setup could not update the Provider entry in the Web server configuration file. The provider name or type is an invalid string. ... Setup detected an existing Application Object Server instance named '{0}'. Instance names must be unique. Enter another name. ... Setup detected existing files in the application files instance specific installation folder {0}. The folder must be empty ... Setup detected existing files in the instance specific folder for the application files {0}. The folder must be empty for ... Setup detected that files in the application folder \"{0}\" are in use. Please stop all the Application Object Servers using ... Setup detected that you are installing {0}, but Windows Internet Information Services (IIS) version 6.0 or 7.0 is not installed ... Setup determined that the executable '{0}' does not exist or the caller does not have the required permission to do this ...