The Quick Answer Check that your system meets the requirements for SketchUp. Reboot your system to ensure that SketchUp isn't locked by another process. Make sure that there aren't any applications running on your system that might conflict with SketchUp, such as anti-virus, firewall, or internet security software. There are a few known issues that can cause this:
Previous versions of SketchUp (6.0.514 and earlier) store custom locations in the "sketchup.tzl" file, which is located in the path below: SketchUp 6.0.514 and earlier "C:\Program Files\Google\Google SketchUp 6\Support\" SketchUp Pro 5 "C:\Program Files\@Last Software\SketchUp 5\Support\" Newer versions of SketchUp (6.4.112 and above) store custom locations in the "locations.dat" file in "C:Program Files\Google\Google Sketchup #\Resources\en-US\"
SketchUp has a digital signature imprint from Verisign, so if you receive a message that there is an invalid digital signature or no digital signature, the likely cause is that installation file was corrupted during download. In that case, clear your browser's cache, and then try the download again. Note: It can take up to 30 minutes to clear the cache.
If you can't start the installation, the cause is most likely an incomplete download of the Setup file. Compare the size of the file to the official download sizes, which you can find in Downloading SketchUp. If there is a difference, try deleting the first file then downloading again.
Windows devices with an NVIDIA graphics card may encounter the following error message:"Your hardware configuration does not meet minimum specifications needed to run the application. The application must close. Error code: 6"To resolve this issue, please try the following steps:
If you are receiving a message stating “Invalid Filename” every few minutes, it may be an issue with SketchUp’s autosave feature.SketchUp saves your files while you are working on them every five minutes by default. When you receive an Invalid Filename error, SketchUp was unable to auto-save the file to the default location.
To work around this issue, press Ctrl+F7. If you're using a Mac laptop, press Ctrl+Fn+F7.Pressing Ctrl+F7 will disable Full Keyboard Access. If the shortcut doesn't work, go to System Preferences > Keyboard > Keyboard Shortcuts. Select Text boxes and lists only under Full Keyboard Access.
When purging a model in SketchUp or uploading it to the 3D Warehouse, unused materials will be removed. If your model contains a Dynamic Component, though, you may also lose textures in "Choose Options" or "OnClick" attributes. To avoid losing these textures, you'll need to embed them into the Dynamic Component: