unable to build siddhi-operator image using operator-sdk

[Bhavya G M]

I'm trying to build a siddhi-operator image by following the steps mentioned in https://github.com/siddhi-io/siddhi-operator

As mentioned in github README.md file, trying to build an image with operator-sdk using command "$ operator-sdk build <DOCKER_REGISTRY_URL>/<USER_NAME>/siddhi-operator:" 

On MAC: The build is failing with the error "unknown command 'build' for 'operator-sdk'"

On Windows: Unable to install operator-sdk itself while executing makefile

PS C:\Users\bhavya.gm\operator-sdk> make install process_begin: CreateProcess(NULL, test -t 0; echo $?, ...) failed. Makefile:106: pipe: No such file or directory process_begin: CreateProcess(NULL, dirname, ...) failed. Makefile:75: pipe: No such file or directory process_begin: CreateProcess(NULL, dirname, ...) failed. Makefile:75: pipe: No such file or directory 'test' is not recognized as an internal or external command, operable program or batch file.

Note: Followed this page to install operator sdk on both mac and windows https://sdk.operatorframework.io/docs/installation/#install-from-github-release