eclipse build error

I am having an issue with running the initial blinky example that came with the nRF51 PCA10028 SDK in the Eclipse IDEimage description. I will include screenshots of the issue. I believe my paths in the project properties are set correctly, and I also believe that I have installed all elements of the setup guide appropriately.

Error: make[1]: Leaving directory `C:/Users/Perry/Desktop/SDK/examples/peripheral/blinky/pca10028/blank/armgcc' make (e=2): The system cannot find the file specified.

make[1]: *** [_build/system_nrf51.o] Error 2 make: *** [all] Error

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