Notebook 4 compilation of program test failed with UsageError: Cell magic `%%riscvc` not found.

[DracarysFrank]

When run %%riscvc test overlay.tutorialProcessor

int main(int argc, char ** argv){ unsigned int * arr = (unsigned int *)argv[1]; return arr[2]; }

UsageError: Cell magic %%riscvc not found.

Have checked that <Path-To-RISC-V-On-PYNQ>/riscvonpynq/picorv32/tut/build exists. riscv32-unknown-elf-gcc can be executed in the last step

Any suggestions on why the compilation fails? Thx a lot