Fix: https://github.com/timschubert/abgabesystem/issues/4#issuecomment-430551541

src/abgabesystem/projects.py

@@ -3,7 +3,7 @@ import logging as log
 from gitlab import DEVELOPER_ACCESS
 from gitlab.exceptions import GitlabError, GitlabCreateError
 from .students import enrolled_students
-from .course import InvalidCourse
+from .course import InvalidCourse, create_solutions_group
 
 
 def create_tag(project, tag, ref):
@@ -144,7 +144,7 @@ def setup_projects(gl, course, deploy_key):
             solutions = gl.groups.get(group.id)
 
     if solutions is None:
-        raise InvalidCourse("No solutions subgroup")
+	solutions = create_solutions_group(gl, course)
 
     reference_project = None
     reference_projects = solutions.projects.list(search='solutions')

src/abgabesystem/students.py

@@ -137,7 +137,7 @@ def get_student_group(gl, course_name):
             students_group = gl.groups.get(g.id)
 
     if students_group is None:
-        raise MissingStudentsGroup()
+        students_group = create_students_group(gl, course)
 
     return students_group