If you are seeing a prompt for aeccland.shx, it means your drawing is looking for a specific shape file originally bundled with Autodesk Land Desktop. Even if you don't use Land Desktop anymore, this file is often "baked" into custom linetypes—like those used for hedges, treelines, or complex site boundaries. 🛠️ Why does it keep popping up?
Legacy Data: You’ve received a drawing from someone who used Land Desktop or a custom template.
Custom Linetypes: Your drawing uses linetypes (like TREELINE or BUSH) that reference shapes stored inside that specific .shx file.
Missing Support Path: The file exists on your computer, but AutoCAD doesn't know where to look for it. ✅ How to fix it:
The "Quick Fix": If you don't care about the specific shapes (like little tree icons in a line), you can just hit Cancel or Ignore when the box pops up. AutoCAD will usually substitute a simple line.
The "Permanent Fix": Find a copy of aeccland.shx (it is widely available in Autodesk community forums) and drop it into your AutoCAD Support folder.
The "Pro Fix": Use the PURGE command or specialized tools like Batch Save Utility to strip out legacy DGN linetypes and shapes if they aren't actually needed in your project.
Stop the "missing file" madness! Save this for the next time your CAD manager asks why the treelines look like dots.
#AutoCAD #Civil3D #LandDesktop #CADTips #EngineeringLife #SHXMissing Solved: Need Linetype Help - Autodesk Community
AeccLand.shx is a compiled shape file used primarily in Autodesk AutoCAD Civil 3D and its predecessor, Land Desktop. It is essential for displaying complex linetypes—such as those representing vegetation, property lines, or specialized civil engineering symbols—correctly. Core Function and Purpose aeccland.shx
Complex Linetypes: Unlike standard dashed lines, complex linetypes embed specific shapes or text. AeccLand.shx provides the "definitions" for these embedded shapes (e.g., small tree symbols or specific dash patterns).
Compilation: It is a binary file compiled from a human-readable .shp (shape definition) file.
Standard Availability: It is considered an "out of the box" (OTB) file included in standard Civil 3D installations, typically found in the software's support file search paths. Common Issues: The "Missing SHX" Error
The most frequent encounter users have with this file is a warning dialog stating that AeccLand.shx is missing when opening a drawing. Missing Shx File(s) - Forums, Autodesk
Option 1: Technical Support / Forum Post (Problem + Solution)
Title: Missing aeccland.shx – Fixing AutoCAD SHX File Errors
Body:
I ran into the "Missing SHX File" error when opening a civil drawing today. The file in question was aeccland.shx.
After digging around, here is what I found:
simplex.shx or ltypeshp.shx as a substitute.aeccland.shx from an old Land Desktop installation (C:\Program Files\Autodesk\Land Desktop\Fonts) into your current AutoCAD Fonts folder.Tip: To permanently stop the prompt, go to Options > System > Hidden Messages Settings and re-enable the SHX missing warning to tell it to always use a substitution map. If you are seeing a prompt for aeccland
Option 2: Quick Social Media / PSA (LinkedIn/Twitter/X)
Headline: Autodesk Tip: Don't let aeccland.shx stop your workflow. 🛑
Are you still opening legacy survey DWGs and getting hit with the "Missing SHX File" error?
aeccland.shx was the shape file for AutoCAD Land Desktop (the grandfather of Civil 3D).
🔧 Quick Fixes:
simplex.shx.Don't let a 15-year-old font file crash your morning. #AutoCAD #Civil3D #Surveying #AEC
Option 3: Wiki / Knowledge Base Entry
aeccland.shx is a powerful but niche shape file that serves as the backbone of site planning in Autodesk's vertical products. While it is a source of frustration for users who only own vanilla AutoCAD, understanding its role—as a symbol library for landscape and civil elements—is the first step to effective troubleshooting.
If you encounter the "missing SHX" error, resist the urge to download a cracked version from the internet. Instead, ask your drawing's author to use ETRANSMIT, or install a trial version of AutoCAD Architecture to legally extract the file. Source: This file is part of the AutoCAD
For CAD managers, the lesson is clear: aeccland.shx is a dependency that turns a simple DWG into software-locked data. Migrate to standard geometry and universal fonts to ensure your drawings survive for decades, not just software cycles.
Need to recover a drawing damaged by a missing aeccland.shx? Consult your local Autodesk reseller or use the RECOVER command to audit the file before substituting fonts.
The aeccland.shx file is a compiled shape file for Autodesk AutoCAD Civil 3D used to define custom linetypes like treelines, trees, or hedges. A missing file warning generally indicates the drawing requires specialized Civil 3D linetypes not present in standard AutoCAD or that the file needs to be placed in the AutoCAD Support directory. For more details, visit Autodesk Forums. Missing Shx File(s) - Forums, Autodesk
The missing aeccland.shx error in AutoCAD and Civil 3D occurs when legacy linetypes, such as hedges or tree lines, are used without the necessary shape file installed. Resolving this issue involves placing the aeccland.shx file in the Support File Search Path, using the
command to remove the reference, or substituting the missing font. Read more at Autodesk Community Missing Shx File(s) - Forums, Autodesk 10-Oct-2017 —
I notice you're asking me to create content for a file named aeccland.shx. Based on the extension .shx, this appears to be a shape file index used in AutoCAD or other CAD/GIS software, specifically part of a shapefile pair (.shp + .shx + .dbf).
However, I cannot directly generate a compiled .shx binary file here, as it's not a simple text file. But I can help you in several ways:
To permanently remove dependency on aeccland.shx:
EXPLODE command on complex AEC objects (use EXPLODE sparingly; use AECOBJEXPLODE for better results).BURST on blocks containing SHX attributes to convert them to standard text..shx file alongside the .dwg file, or use a standard font like simplex.shx to ensure cross-compatibility.Aeccland.shx is defined in a Civil 3D Label Style, changing the style definition in the Toolspace (Settings tab) is the correct way to swap fonts, rather than changing the style manually in the STYLE command, which may be overwritten by the software.