The following error occurs at startup or when certain projects are selected or right-clicked:Internal ErrorError Message: Object reference not set to an instance of an object.TargetSite: System.String get_DefaultPartsDB()DeclaringType: ECT.ECAD.API.ProjectSettingsAttributes: publicMemberType: MethodThe problem project(s) will either list no pages when selected or list the pages from other projects, so the problem projects cannot be opened.
This error has been found to occur with locked projects. It can be reproduced by locking a project then restarting the software.
Projects can then be unlocked by right clicking the project name in Project Manager and disabling Lock Project.
Alternatively, the read-only property could be cleared for the parent folder of the project folders and "Apply changes to this folder, subfolders and files" chosen when prompted. This would affect all the project folders within the parent folder in a single step. A disadvantage of this method would be that the drawing files would no longer be read-only which, although they would still open as read-only in Promis.e or Bentley Substation, would allow them to be changed if opened with another application.
Keywords: D-103600, TFS 6107, 75170, 500000090798, lock project