I want to update a project, but when opening it in netbeans, it does not give the option to execute
According to this question from the SO gringo:
Just disable the "Compile and Save" option and restart Netbeans.
But this other answer better explains what is really happening:
This happens when you close Netbeans while you still have errors in the code and the option "compile on save" is enabled. To resolve, delete the Build directory from your project directory and restart Netbeans.