Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.
1-you must know the problem
2-you should know the history of problem when it started
3-biggin to search about all solutions for the problem
4-start step by step to solve it
5-you must know that the problem will not solved by the first solution it may be take more than
6-ask an experienced people to help you