Using the xcode plugin does not work when using workspaces.

The issue seems to be that it tries to use the target "-alltargets" option even if the workspaceFile is defined.

A sample patch that is working for me is attached. It basically removes the -alltargets argument if the workspace exists

• } else if (StringUtils.isEmpty(target)) { + }

  else if (StringUtils.isEmpty(target) && StringUtils.isEmpty(xcodeWorkspaceFile)) {}}
  commandLine.add("-alltargets");
  xcodeReport.append("target: ALL");