Compilation fails

After !602 (merged), OPAL compilation fails. The format of the new version is invalid (see link)

added Bug label

@gsell: this bug must be fixed!

created merge request !603 (merged) to address this issue

mentioned in merge request !603 (merged)

assigned to @gsell

marked this issue as related to #742 (closed)

closed with merge request !603 (merged)

mentioned in commit aa7ef52d