-- Database schema
| Method : Id [ INTEGER ] primary_key , Name [ TEXT ] , FullComment [ TEXT ] , Summary [ TEXT ] , ApiCalls [ TEXT ] , CommentIsXml [ INTEGER ] , SampledAt [ INTEGER ] , SolutionId [ INTEGER ] , Lang [ TEXT ] , NameTokenized [ TEXT ] | MethodParameter : Id [ INTEGER ] primary_key , MethodId [ TEXT ] , Type [ TEXT ] , Name [ TEXT ] | Repo : Id [ INTEGER ] primary_key , Url [ TEXT ] , Stars [ INTEGER ] , Forks [ INTEGER ] , Watchers [ INTEGER ] , ProcessedTime [ INTEGER ] | Solution : Id [ INTEGER ] primary_key , RepoId [ INTEGER ] , Path [ TEXT ] , ProcessedTime [ INTEGER ] , WasCompiled [ INTEGER ] |
-- -- For the repository which got '189' Stars, how many solutions which needs to be compiled does it contain?

SELECT COUNT(T2.RepoId) FROM Repo AS T1 INNER JOIN Solution AS T2 ON T1.Id = T2.RepoId WHERE T1.Stars = 189 AND T2.WasCompiled = 0;