Please check if the 'egcm' package meets conditions below:
For security and privacy reasons, R packages are not supported that provide client-server queries through the World Wide Web in the service (eg, RgoogleMaps). Networks are blocked during such attempts. The following section contains a list of supported and unsupported R packages.
The approval process for including a new R package involves a number of dependencies. Some dependencies that need to be installed in the service can not be supported.