The problem is probably not import related.
In the current setting, once you unzip the AN10995 file,
CMSISv1p30_LPC11xx library was built and put in the "Debug" directory.
However, the application library search path is:
"${workspace_loc:/CMSISv1p30_LPC11xx/Release}"
Here is what you should do:
From application project, go to properties/MCU Linker/Libraries/Library Search Path (-L)
Add:
"${workspace_loc:/CMSISv1p30_LPC11xx/Debug}"
Now, your application will seach both "Release" and "Debug" directory and link
"CMSISv1p30_LPC11xx" library correctly.