Scroll through the list of available downloads. You’ll see:
| Issue | Solution | |-------|----------| | “SDK installer says ArcGIS Desktop not found” | Install ArcGIS Desktop 10.8 first, reboot, then run SDK installer. | | “Cannot see templates in Visual Studio” | Run Visual Studio as admin, or repair the SDK installation. | | “COM errors when running custom tool” | Ensure your project is compiled for (ArcMap is 32-bit). | | “License error: ArcGIS is not licensed” | Run ArcMap once to activate license, then use AoInitialize properly in code. | arcobjects sdk 10.8 download