I need to install Contiki, so I after I installed VMware, I opened the virtual machine and when I run the virtual machine a message appear sayes " Error while powering on: VMware Player cannot connect to the virtual machine. Make sure you have rights to run the program, access all directories the program uses, and access all directories for temporary files. The VMware Authorization Service is not running." what should I do to make my virtual machine work without any problem?
