Cara Membuka Drawing File Is Not Valid

Issue:

An AutoCAD drawing (DWG) file has been corrupted.

  • Drawings may show the message “Drawing file is not valid.” when opened in AutoCAD.
  • Drawings may display a message about errors being found, hang, or crash during the opening process.
  • File may not appear in AutoCAD after being opened.
  • File may open, but freeze and have to be force closed.
  • Blank drawing or Drawing 1 opened after recover.

Causes:

  • Third-party applications running inside AutoCAD.
  • DWG files or objects created or saved by non-Autodesk or non-RealDWG products.
  • AutoCAD terminated while saving the drawing.
  • Old drawings used repeatedly over long time periods.
  • Network anomalies (transmission errors, file locking, latent writing of data).
  • Storage media degradation (bad sectors on a hard drive).
  • Defective or failing RAM.
  • Operating System issues.
  • Power surges.
  • Outdated software.

Solution:

Try the following in titipan. If one doesn’t work, go to the next one:

  • Open a new, blank drawing then type
    RECOVER
    on the command line. Browse to and select the file in question.

  • Delete DWL and DWL2 files:

    1. Turn on hidden files (see How to turn on hidden files and folders on Windows and How to turn on hidden files and folders in the macOS).
    2. Locate the drawing folder and delete the DWL and DWL2 files if they are found next to the DWG file.
    3. Attempt to open the DWG again.
  • Insert the drawing in a blank drawing:

    1. Open a blank DWG template, such as
      acad.dwt.
    2. Run the
      INSERT
      or
      CLASSICINSERT
       command.
    3. Select the problematic file.
    4. Press OK.
  • Restore from an autosave file:

    1. Open theC:\Windows\Temp folder in Windows.
    2. Show hidden extensions (see How to turn on hidden file extensions in Windows).
    3. Look for a file with an SV$ extension and a similar name to the corrupted file.
    4. Copy the file to a new location and rename the extension to DWG.
    5. Open the file in AutoCAD.

Note: the location of autosave files might be different than the default one. It is stored in AutoCAD Options > File tab > Automatic Save File Location.

  • Try opening the drawing using DWG TrueView. If the file opens, convert the file to a previous DWG version, then open in AutoCAD.
  • Go back to a previous version of the file.

Products:

AutoCAD for Mac; AutoCAD LT for Mac; AutoCAD Products; DWG TrueView;

Source: https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Recovering-drawing-files-which-fail-to-open-in-AutoCAD.html