You need to put in eyes of ender facing inwards in each block of end portal. Then you will see a starry night sky inside, jump in
You have to put 12 eyes of ender in each of the portal blocks. Then, it should activate.
To activate the portal leading the The Ark.
Place 3 End Portal Frame blocks on each side without corners, then place Eye of Ender in each frame to activate your portal. Note that, End Portal Frames cannot be obtained using Creative Mode and the give command. Mods will be required to obtain it.
You have to find a stronghold with an end portal in it then place 12 eyes of ender to activate it
To enter an End Portal in Minecraft, you need to find a Stronghold where the portal frame is located. First, place Eyes of Ender into each of the portal frame blocks until all twelve slots are filled; the portal will activate and display a starry portal surface. Then, jump into the activated portal to be transported to the End dimension. Make sure you're prepared, as the End is home to the Ender Dragon and other challenges!
Place 3 End Portal Frame blocks on each side without corners, then place Eye of Ender in each frame to activate your portal. Note that, End Portal Frames cannot be obtained using Creative Mode and the give command. Mods will be required to obtain it.
Get some ender pearls by killing endermans and blaze powder which is crafted from blaze rods which can be obtained from killing blaze in the Nether. Craft eye of ender using ender pearls and blaze powder. Right click with the eye of ender on the end portal frame. Activate all frames to activate the portal.
First of all: it's not called 'The Ender Dimension', it's called 'The End'. You can get there by finding a stronghold, then activating the portal there. When you jump through you will go to The End. (You activate the portal using 'Eyes of Ender', made using Ender pearls and Blaze powder.)
To make the end portal in Minecraft, you'll need to gather 12 End Portal Frames and 12 Eyes of Ender. First, arrange the End Portal Frames in a 3x3 square, leaving the corners empty. Then, place an Eye of Ender in each of the frames. Once all the Eyes are in place, the portal will activate, allowing you to enter the End dimension.
Nether Portals are constructed from Obsidian, so that's the block you would need. The Block ID for obsidian is 49 (command /give 49 1, remove if playing single player) and a Flint and Steel to activate the portal.If you mean the end portal, the block ID for End portal blocks is 120 and you'd need Eye(s) of Ender to activate this portal.
You can create an Ender Portal using Ender Portal Frame blocks from your inventory and activate it using Eyes of Ender
In Minecraft you must find a stronghold that holds an end portal. You will also need 9 ender eyes to activate the portal. Ener pearls drop form Enderman and you can craft the ender eyes from them.