Project.toml and package updating

I accidentally deleted all the contents on my Project.toml file. Will that affect my package updating?

You mean ~/.julia/environments/v1.x/Project.toml? Yes. You will just need to pkg> add or pkg> dev whatever you had there.

Theoretically this particular Project.toml it could be regenerated from the corresponding Manifest.toml but I am not aware of existing functionality for this.

In 1.4 you will be able to instantiate a lonely Manifest.toml (assuming there are no packages with the same name) and all packages in it will be put into a new Project file.


Do you mean i need to reinstall all packsges?

They should be in your depot unless you did pkg> gc or similar, you just have to add them. So no downloading/rebuilding should be necessary.