Simulink Coder doesnt create c.o. file / STDERR: gcc: error: No such file or directory

Hi there, I am writing a driver for external hardware that sits on my raspberry pi. I do this in a Matlab Function which calls the file tinycan_read_test.c which contains the specifif C Code to communicate with the hardware. When trying to compile the code down to the Raspberry, I get: STDERR: gcc: error: tinycan_read_test.c.o: No such file or directory

Any ideas? Thanks