I started with STS 2.6 and installed Flash Builder 4 Plugin.
Created a Roo project and created four entities with very primitive fields, all number/Long and String fields.
Then "flex setup" followed by "flex remoting all --package ~.service
Here is the shell log. Same field exists error as other attempts, the _scaffold.swf does not compile.
Code:
~.RuleProperties roo> flex remoting all --package ~.service
Created SRC_MAIN_JAVA\com\corenttech\care\service
Created SRC_MAIN_JAVA\com\corenttech\care\service\ActionPropertiesService.java
Created ROOT\src\main\flex\com\corenttech\care
Created ROOT\src\main\flex\com\corenttech\care\ActionProperties.as
Created SRC_MAIN_JAVA\com\corenttech\care\service\RulePropertiesService.java
Created ROOT\src\main\flex\com\corenttech\care\RuleProperties.as
Created SRC_MAIN_JAVA\com\corenttech\care\service\ActionsService.java
Created ROOT\src\main\flex\com\corenttech\care\Actions.as
Created SRC_MAIN_JAVA\com\corenttech\care\service\EventPropertiesService.java
Created ROOT\src\main\flex\com\corenttech\care\EventProperties.as
Updated ROOT\src\main\flex\CAREBase_scaffold.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold-config.xml
Created ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties
Created ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesEvent.as
Created ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesView.mxml
Created ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesForm.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold-config.xml
Created ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties
Created ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesEvent.as
Created ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesView.mxml
Created ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesForm.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold-config.xml
Created ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties
Created ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesEvent.as
Created ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesView.mxml
Created ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesForm.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold.mxml
Updated ROOT\src\main\flex\CAREBase_scaffold-config.xml
Created ROOT\src\main\flex\com\corenttech\care\presentation\actions
Created ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsEvent.as
Created ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsView.mxml
Created ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsForm.mxml
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsForm.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsView.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actions\ActionsEvent.as
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actions
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesForm.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesView.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties\ActionPropertiesEvent.as
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\actionproperties
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesForm.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesView.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties\EventPropertiesEvent.as
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\eventproperties
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesForm.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesView.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties\RulePropertiesEvent.as
Undo create ROOT\src\main\flex\com\corenttech\care\presentation\ruleproperties
Undo manage ROOT\src\main\flex\CAREBase_scaffold-config.xml
Undo manage ROOT\src\main\flex\CAREBase_scaffold.mxml
Undo create ROOT\src\main\flex\com\corenttech\care\EventProperties.as
Undo create SRC_MAIN_JAVA\com\corenttech\care\service\EventPropertiesService.java
Undo create ROOT\src\main\flex\com\corenttech\care\Actions.as
Undo create SRC_MAIN_JAVA\com\corenttech\care\service\ActionsService.java
Undo create ROOT\src\main\flex\com\corenttech\care\RuleProperties.as
Undo create SRC_MAIN_JAVA\com\corenttech\care\service\RulePropertiesService.java
Undo create ROOT\src\main\flex\com\corenttech\care\ActionProperties.as
Undo create ROOT\src\main\flex\com\corenttech\care
Undo create SRC_MAIN_JAVA\com\corenttech\care\service\ActionPropertiesService.java
Undo create SRC_MAIN_JAVA\com\corenttech\care\service
A field with name 'EPropertyDefault' already exists
~.RuleProperties roo>
Can't use Flex Roo until this bug is corrected and it doesn't matter if you have FB4 installed, first, or as a plugin or at all. More errors installing STS2.6 into FB4 but none of them work.