Hi Hein,
Thanks for contacting Syncfusion support.
Could you please let us know whether Framework 4.5.1 is installed in your machine? Framework 4.5.1 Syncfusion assemblies will be installed only when that framework is installed in your machine.
If you already installed Framework 4.5.1 in your machine, then follow the steps suggested in the following KB article link to resolve the reported issue.
https://www.syncfusion.com/kb/7989 If you still face the same issue, please follow the steps suggested in the below KB article link and send us the zip file which consists of complete Syncfusion Installer logs generated by our tool. It would be much helpful for us to analyze the reported issue.
http://www.syncfusion.com/kb/2331 Regards,
Manivannan S.
