AX 2012 Installation with Enterprise Portal (Crash and Hotfix)

A crash in the application can be due to a problem with Diasymreader.dll. You can see the full description of this problem and his solution here:

To solve this error you can download the hotfix from:
The hotfix is not recommended to be installed if we are not experience the problem. In this case, Microsoft advice wait for the next software update that contains the hotfix.