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TMDS64EVM: PRU Echo interrupt example not Building

Part Number: TMDS64EVM

Tool/software:

Hello,

I was trying to build the Echo Interrupt example from the PRU-Software support package.

As it isn't a CCS project I created a new PRU CCS projekt, added all the files of the example.
After that I added the Include options: 
"E:\ti\pru-software-support-package-6.4.0\include\am64x"
"E:\ti\pru-software-support-package-6.4.0\include"

As well as the File search path for the PRU Linker:
"E:\ti\pru-software-support-package-6.4.0\lib\rpmsg_lib.lib"

When trying to Build thie Project I get an Error:
"../main.c", line 60: fatal error #35: #error directive: "CHAN_PORT not defined, must be passed using the compiler CFLAGS"



I didn't see anything else in the Hands on Labs that I would have to do.
Did I miss something?

Thank you very much for helping in advance!