It can be done but it requires a Sanhedrin. The Sanhedrin requires Rabbonim with Smichah, which no longer exists bizman hazeh. According to the Rambam who speaks about this, Smichah can be re-established if the majority of the Gedolei Rabbonim in eretz Yisroel, confer Smichah on one Rov, and he in turn will give Smichah to others etc. Once a Sanhedrin is established they will determine and solve all the issues. You can check this out in the Rambam.
this has been tried in the 1500s by Mare Be Rav (Rav Yosef Karo’s Rebbe) and failed.
Rav Henken Zatzal wrote about this as well.
