Mickey,
Can you please clarify if you have specified : C:\home\myhome\mywls\wls12130 in the Execution domain root text field?
If yes, then the Execution Domain root is the directory that contains the execution domain directory.
Ex : C:\Oracle\Middleware\user_projects\domains\base_domain
Please recheck and let us know how it works.
–Swapna
MyEclipse Support