(OO) Support Tip: More information about SCM tag
Using Operations Orchestration (OO) Studio, when a release version is created Studio automatically commits the project properties and adds a SCM tag. If the tag already exists because probably the same version was previously marked as release. An error is seen, "Tag already exists. Change the name of the SCM tag".
To solve this problem either expand the “advanced” dropdown and rename the version or uncheck the release checkbox. The error message cannot be changed as it is returned by the Subversion (SVN) client.