How can I completely uninstall and then reinstall Meteor.js?

My app started crashing for absolutely no reason. I rolled back to a version I knew worked, but it is still crashing. I cloned a version from github that I absolutely know was working because I've been working on it for a week. It won't start. Everything is 'undefined' -- Meteor, UI, Router, Template, etc. I don't have time for this. How can I completely uninstall Meteor and reinstall it from scratch?

For bonus points: why did this happen and how can I prevent it from happening again?

Solution 1:

Let’s start with the deletions, then we’ll move on to the reinstallations.

1. If you ever installed Meteorite, uninstall and delete it:

   sudo mrt uninstall
   sudo mrt uninstall --system
   rm -rf ~/.meteorite
   

2. Then delete Meteor:

   sudo rm /usr/local/bin/meteor
   rm -rf ~/.meteor
   

Now start over at the beginning:

1. Repair permissions if necessary:

   sudo chown -R $(whoami) ~/.npm
   

2. Reinstall Meteor:

   curl https://install.meteor.com/ | sh
   

3. Next check that your project has all its proper packages:

   cd /path/to/your/project
   meteor update
   

4. If your project still won’t compile, you can reset it (warning: deletes database):

   cd /path/to/your/project
   meteor reset
   

5. Still no luck? Recreate the Meteor project (warning: deletes database and the project’s memory of what packages you’ve installed):

   cd /path/to/your/project
   rm -rf ./.meteor
   cd ..
   meteor create project-new
   rm ./project-new/project-new.*
   mv ./project/* ./project-new/
   cd ./project-new
   

   (and run meteor add *packagename* over and over to reinstall each package you were using)

Solution 2:

I think the easiest is

curl https://install.meteor.com/ | sh

Solution 3:

If you are searching for answer in 2017/2018 on Windows Operating Systems:

choco uninstall meteor

Then

choco install meteor

Solution 4:

I tried all of this and none of it worked.

Then I ran meteor --verbose in the command line and it seems to have sorted out the kinks! A quick meteor reset and everything is working again now!