Preactor Not Loading When Launched

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Preactor Not Loading When Launched


Preactor either crashes or does not load when launched.


Corrupt data in the configuration settings folder.  Indications that the cause of this error is a corrupt configuration settings folder are:

  • Windows event log (Start>Control Panel>Administrative Tools>Event Viewer) reports errors with .net framework 2. 
  • Contents at the bottom of the 'preactorError.log' file.  This file is located in the user temp directory (enter %temp% in a Windows Explorer window to access this directory quickly).  Error text at the end of the file such as ConfigurationSchemaError, schemaErrors, Inner exception on System.ConfigurationErrorsException will be present if the configuration settings are the cause of the error. 

Delete the configuration settings folder 'Preactor_International_Lt'

Location of the configuration settings folder will vary depending on what Operating System and version of Preactor is installed (enter %appdata% in a Windows Explorer window to access the application data directory quickly).  See below for the locations.

Preactor 2015 and higher

  • Windows 7 location: C:\Users\{UserName}\AppData\Roaming\Siemens_AG

Preactor 11.1 -12.1 SP2

  • Windows 7 location: C:\Users\{UserName}\AppData\Roaming\Preactor_International_Lt
  • Windows XP location: C:\Documents and Settings\{UserName}\Application Data\Preactor_International_Lt

Preactor 10 -> 11.01
  • Windows 7 location: C:\Users\{UserName}\AppData\Local\Preactor_International_Lt
  • Windows XP location: C:\Documents and Settings\{UserName}\Local Settings\Application Data\Preactor_International_Lt
Once the folder is deleted Preactor should run again, and create a new configuration settings folder.


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Last Modified:Tuesday, October 13, 2015
Last Modified By: Dawn Platt
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