I have installed the magento2 successfully but there are a lot of js error
try following :
make bin/magento executable
chmod +x bin/magento
Clear cache etc in var folder
rm -rf var/cache/ var/di/ var/generation/ var/page_cache/
Run Setup ( if any thing missing )
bin/magento setup:upgrade
Deploy Static Content
bin/magento setup:static-content:deploy
Give Permission to var & pub folders
chmod -R 777 pub/ var/
now all the static files containing js, css etc will be deployed in pub/static folder
Remove all files and folder in pub/static except .htaccess and then run:
php bin/magento setup:static-content:deploy
Problem solved ...
There is a 'cache' system for these static resources. navigate to the folder dev/tools/Magento/Tools/View
Run the below command in the terminal
php deploy.php
After running this command css and other files created under the Pub/static/ folder and all the css will appear and page look fine.