当我将我的测试应用移至SD卡时，我的自定义帐户validator(com.heidi.AccountStuff)不再存在。如果我像这样添加一个新帐户Accountaccount=newAccount("heidi",AccountAuthenticatorService.TYPE);AccountManageraccountManager=AccountManager.get(this);accountManager.addAccountExplicitly(account,"",null);它会抛出一个RuntimeExceptionjava.lang.SecurityExcepti