This usually means you are trying to install ACR 6.7 on Photoshop CS4 or CS6. ACR 6.x is strictly for the CS5 family.
Support for then-new cameras like the Canon EOS 5D Mark III and Nikon D800. adobe camera raw 6.7 download
You must have Adobe Photoshop CS5 or Adobe Bridge CS5 installed. Operating Systems: Windows: XP, Vista, or Windows 7. macOS: OS X 10.5, 10.6, or 10.7. This usually means you are trying to install ACR 6
Because ACR 6.7 was released in 2012, it does not support modern cameras like the Sony A7R V or Canon R5. If you are stuck on CS5 but have a new camera, you have two options: You must have Adobe Photoshop CS5 or Adobe
Compatibility with the DNG Converter 6.7 for newer, unsupported cameras. Compatibility Requirements
Try running the installer as an Administrator (Windows) or checking your Security & Privacy settings (Mac) to allow apps from identified developers.