I'm using ADuC7026 for project. But project already done in keil 3 & that was working.
Keil 3 expired now, when I copied the same code in keil 4 it's showing errors. Please give me the solution...Thanks!
A closer reply requires seeing the error messages.
Your target is supported by Keil MDK.
In general, my recommendation is to migrate your project to Keil MDK 5:
http://www2.keil.com/mdk5
There are existing related Forum posts, i.e.:
https://community.arm.com/support-forums/f/keil-forum/5102/how-do-i-migrate-a-keil-project-made-with-mdk-4-x-to-mdk-5-x-following-cmsis-changes