Hi anyone!
I updated Unity 5.3.0, when Run Unity, can’t Open windown List Project and Create New Project. help me.
i have the same problem exactly. i want to know how to fix it too.
Hi. I bet you can open an existing unity scene by clicking on the scene. If it does not work, uninstall unity and download unity 5.2.3. Hope this helps. 
Hi anyone! I installed version 5.2.4 not Error.
Same Problem here. I am on 5.3.5f1
Turn off the Wi-Fi and lunch the unity 3d after that turn on Wi-Fi back again. Hope this help!