Why would my play framework say wait for a .sbt lock to be available?

Question

[Sally] $ run

[info] Updating {file:/Users/MyName/Desktop/sally/todolist/}Sally...
Waiting for lock on /Users/MyName/Documents/play-2.1.3/repository/.sbt.ivy.lock to be available...

Sally is my project's name. I am learning how to use play. Yesterday It was all awesome. Today when I woke up and opened my computer, everything went to hell. I kept seeing this message when I try to run the program.

What is this lock anyway? Should I uninstall/remove the framework and reinstall it?? (Btw how do I do that?)

Answer 1

Just remove the .lock file. It is used when resolving dependancies and to avoid conflicts if you launch two Play consoles.