Hi,
I am using nrf51422 in my project.So we are using keil5 u vision project and sdk 12.3 version so here the problem is when i tried to open the blinky project it is showing device is not found but i have installed the nrf51422 device software pack i am here by attaching the file 
plz tell me how to resolve all these issues.
Hi.
From the window in Keil, it seems that you need to install the DeviceFamilyPack v.8.11.1
Can you double check that that version is installed?
Go to Pack installer -> Select the board
Under Packs -> Expand the NordicSemiconductor::nRF_DeviceFamilyPack and see if the correct version is installed. (See picture below).
Best regards,
Joakim
I followed the same instructions what you have said but still it is showing the same thing that software pack is not installed.So after installing the mdk software the pop up of packet installer appeared so there i followed the same instruction as you said so when i tried to build the example project it is showing the same thing and again when i tried to install software pack i have clicked packet installer icon then this came
then i have tried to install but the dialogue ""cannot remove read only from"" is coming is i click on retry button it is showing the same thing and if i click on cancel i couldn't able to select the devices/boards/packs ..means it is not expanding when i click on the + button... and also i have doubt that which keil software do i need to download for this board i have downloaded MDK software......... could you plz tell me to resolve these issues.
