If a Parameter Study has been set up in a project, you cannot set up an Uncertainty Analysis in the same project until the Parameter Study is deleted. When you try to click the Uncertainty Analysis icon to open an Uncertainty Analysis dialog, you will receive an error message, as displayed in Figure 3.3: Error Message about an Existing Parameter Study. To delete the existing Parameter Study, click any active Parameter Study icon to open a Parameter Study dialog, click the Select All button first and then click the Delete button. Once the Parameter Study setup is deleted, you can click the Uncertainty Analysis icon to open a dialog.