Ryan Wunderlich

You have a Civil 3D drawing that the Structures in Profiles, Sections or Model have all disappeared, and cannot be redrawn.

This problem is usually a very simple issue. Those invalid shortcuts are pointing to a location that no longer exists.

Now, if it happens in all drawings, then you are missing a SHX (typically ltypeshp.shx) or you are missing a path to that SHX file.

In AutoCAD or AutoCAD-based products, you have significant performance issues on layouts or areas of the screen that contain large amounts of text

You have selected multiple objects and when trying to use the Shift key to deselect objects, it fails to deselect any objects, and you have Raster Design installed or are using Map 3D or Civil 3D.

You have an alignment with no curves and it entirely build with line segments.

This problem can be caused by a few things, namely how the viewport was created and if it was generated from a Polyline, if there are vertices stacked on one another.

This is a defect that Autodesk is aware of and is logged as defect ACD-14045 with the development team. Here are your options.

When attempting to install any AutoCAD-based software you get the following error: Error 20 at 1 -2% when installing AutoCAD based 2022 software. This is usually caused by a DirectX component failing.

You install or run Civil 3D and get this error when clicking on a tool in the tool palette (typically subassemblies): Unable to execute the tool

This problem is generally caused by an issue with an underlying set of programming or or the AutoCAD settings have become corrupted. Here's what you need to know.

This problem is generally caused by an issue with an underlying set of programming or the AutoCAD settings have become corrupted. Here's what to do.

It’s important to know what you should migrate and what you should not when setting up your AutoCAD or AutoCAD-based software.

You create Data shortcuts in Civil 3D 2020, 2021, or 2022 from a file, and after the Autosave triggers, any new data shortcuts point to the AutoSave file and are broken upon save. Here's what to do.

Each time you reboot and log into your PC or you attempt to run the Autodesk Desktop App, it crashes and opens a Crash Error Report to send to Autodesk. Here's what to do next.

This problem can manifest itself when using multiple viewports in Modelspace or can occur when your project is far away from 0,0.