1kernel_noattr.rscript:4:5: error: Compute kernel root() is required to return a void type 2kernel_noattr.rscript:4:5: error: Compute kernel root() must have at least one parameter for in or out 3kernel_noattr.rscript:11:5: error: invokable non-static functions are required to return void 4kernel_noattr.rscript:15:5: error: invokable non-static functions are required to return void 5