Microsoft Exchange 2013 installation troubleshooting

When you install Microsoft Exchange 2013 Preview you can find a few problems.
Those of you who have yet to be installed in advance of the new Exchange can solve these problems before installation.

When you install the first Exchange Server 2013 Preview in the Active Directory forest, you may receive the error:

Windows 2012:

The following error was generated when “$error.Clear();
install-ExchangeSchema -LdapFileName ($roleInstallPath + “Setup\Data\”+$RoleSchemaPrefix + “schema0.ldf”)” 
was run: “The system cannot find the file specified”.

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