Error Building Imported Project: ‘target pattern contains no %’

Description

If your application or library makefile uses an absolute path and is generated with the GCC 3 toolchain, and you import it to the version 10.0 Nios II SBT for Eclipse using the GCC 4 toolchain, you get the following build error:

makefile:587: *** target pattern contains no '%'. Stop.

Resolution

Recreate the project using the SBT for Eclipse version 10.0.

Alternatively, use the GCC 3 toolchain.