| Class | Description | |
|---|---|---|
 | AlreadyDefinedCableUnitException | The exception that is thrown when you try to set a cable unit to an occurrence that already has a defined cable unit. |
| AlreadyDefinedRasterException | The exception that is thrown when you trying to insert raster with positions into drawing which already contains one. |
| ArgumentException | Argument is invalid. The exception is thrown when a wrong argument is passed to the method or the setter of property. |
| ArgumentNullException | Argument is null. |
| CannotMergeBundlesException | The exception that is thrown when you to merge bundles in a cross, i. e. more than two bundles. |
| CanNotReviseRevisionedDocumentException | Revisioned document cannot be revisioned. |
| CannotRouteCableWireException | The exception that is thrown when you try to route a cable wire. |
| CannotSplitBundleException | The exception that is thrown when you try to split a bundle in a control point which is not on the bundle. |
| ConnectionException | The exception that is thrown when there is a problem with the connection of an occurrence. |
| ControlPointsAreNotNeighboringException | The exception that is thrown when the two edge control points do not lie side by side. |
| DirectoryNotFoundException | This directory was not found. |
| DocumentIsNotRevisionException | This document is not a revision. |
| DocumentVersionException | Document was saved with an unsupported version of HpD. |
| DuplicateElectricalConfigurationException | The exception that is thrown when electrical configuration with this name already exists in this variant. |
| DuplicateElectricalOptionException | The exception that is thrown when an electrical option with this name already exists in this project. |
| DuplicateNameException | This name is already taken. Pick a different one. |
| DuplicateUserDefinedPropertyException | The exception that is thrown when a user-defined property with this name already exists on this object. |
| EmptyPropertyException | The exception that is thrown when the property is empty. |
| FileChangedBeforeException | The file has been modified before writing. |
| FileClosedException | This file is not opened. |
| FileExtensionException | The exception that is thrown when the file has the wrong extension. |
| FileLockedException | File you are trying to open is locked by another user. |
| FileNotFoundException | This file was not found. |
| FileNotReadableException | File you are trying to read is not readable. |
| FileOpenedAsReadOnlyException | You can not perform this action on a document opened as read only. |
| FileOpenedException | The file is open. |
| HpdApiException | Base HpD Api Exception. |
| HpdApiNotInitializedException | Api is not in an initialized state. You can get current state from EPLAN.Harness.API.HpdApi.Status property. If API is uninitialized, you can initialize it by calling EPLAN.Harness.API.HpdApi.Init method. If API is in failed state, you can not resurrect it. |
| HpdApiNotUninitializedException | HpD API is not uninitialized. It is either already initialized or failed. |
| HpdApiVersionException | Version of the API assembly (ApiVersion) is different from the version of linked Harness proD (HpDVersion). |
| HpdLoadError | Could not load the HpD. Is HpdPath incorrect? |
| IncorrectPartTypeException | The exception that is thrown when the part type is not supported in the method. |
| InternalErrorException | Internal error of HpD or HpD API. IMPORTANT: Throwing this exception changes HpD Api's state to Failed. |
| InvalidFileNameException | The exception that is thrown when the file name contains characters which are not allowed. |
| InvalidPropertyCastException | The exception that is thrown when you try to set an incompatible value into this property. |
| KeyNotFoundException | The exception is thrown when the key was not found in the dictionary. |
| LibraryNotFoundException | The exception that is thrown when the active library is not found or the active library is empty. |
| LibraryVersionException | The exception that is thrown when the library has the wrong version. |
| LicensingErrorException | This operation was denied because of your license. |
| NoActiveLibraryException | The exception that is thrown when the project has no active library. |
| NoDirectRoutingConnectionException | The exception that is thrown when the semi-auto routing function did not find any direct connection between given control points. |
| NotSamePartOfPathException | The exception that is thrown when the two edge control points do not lie on one part of path. |
| NotSupportedException | The exception is thrown in case of attempt to access a property or a method which is not supported on the current instance of the object. |
| NotSupportedUnitException | The unit is not supported. |
| ObjectInvalidException | The object is in invalid state. Obtain a new one. |
| OccurrenceDeletedException | The exception that is thrown when you trying to access to already deleted occurrence. |
| OccurrenceIsAlreadyRoutedException | The exception that is thrown when you try to route an occurrence again through the same bundle. |
| OccurrenceIsAnchoredException | The exception that is thrown when you trying to change position or rotation of anchored occurrence. |
| OccurrenceMissingInDocumentException | The exception that is thrown when an occurrence is not part of this document. |
| OperationFailedException | The operation was not successful. |
| OutOfBoundsException | This index is out of bounds or not found. |
| PartNotFoundException | The exception that is thrown when the part is not found in the library. |
| PartPlacementFailedException | The exception that is thrown when the part cannot be placed to workspace/workdesk. |
| ProjectAlreadyOpenedException | A project is already open. Only one project can be open at any moment. |
| ProjectClosedException | The exception that is thrown when no project is open. |
| ProjectNotOpenedException | The exception is thrown when project operations are executed, but no project has been opened. |
| PropertyDoesNotExistException | The exception that is thrown when the property does not exist in this context. |
| PropertyIsNotEnabledException | The exception that is thrown when the property is not currently enabled. |
| ReconnectException | An error has occurred during reconnecting. |
| SecurityException | The exception that is thrown when there is a problem with security. |
| SpecialComponentHasNoBundleException | The exception that is thrown when you try to remove a special component from a bundle while the special component is not on any bundle. |
| WrongUnitException | The exception that is thrown when the EPLAN.Harness.API.ApiProperties.Unit you are trying to use is not valid in this context. |