Error 2502 and error2503 is due to win8 permissions problems caused by, specifically, to be installed as an administrator can be resolved, the following detailed to say.
1.cmd command line click Run as Administrator.
2. At this time you can open the CMD window to run the administrator rights, note the following if you open the cmd window directly different. Note the. msi is the version name that you downloaded.
3. Next in the cmd window into the directory where the Nodejs installation package is located, enter the command to install
4. The installation will not be error, after the installation is completed also in the CMD window of administrator rights to enter the NODE-V command can verify that the installation was successful.
PS: This error often appears, I guess the reason is that my system is win10 relationship, Baidu an afternoon, with a change from the property, C drive to get administrator rights, a variety of methods can not, this method has also tried to not work, the reason is not enough careful to get the wrong installation of the command. This is the perfect solution.
Nodejs Installation Failed