nvm is not compatible with the npm config “prefix” option:
Delete and Reset the prefix $ npm config delete prefix $ npm config set prefix $NVM_DIR/versions/node/v6.11.1 Note: Change the version number with the one indicated in the error message. nvm is not compatible with the npm config “prefix” option: currently set to “/usr/local” Run “npm config delete prefix” or “nvm use –delete-prefix v6.11.1 –silent” to … Read more