Got error while updating butterfly

[mostapha]

@Grasshope

1. how this butterfly-plus-master folder is installed previously?
2. why the existence of this folder will affect the update?
3. whether it is required to run butterfly

The way the installation script works is to

1. Download the butterfly and butterfly-plus repositories from GitHub.
2. Unzip the files into butterfly-master and butterfly-plus-master.
3. Copy the related files to butterfly and butterfly-plus folders.
4. Try to remove the zip files and butterfly-master and butterfly-plus-master folders. Sometimes Windows keeps the files inside the folders open and doesn’t let the folder to be removed! That’s why you had the -plus folder in your directory.

To answer your questions:

1. It wasn’t removed for the reason that I mentioned above.
2. Because Windows system cannot overwrite the file that already exist without permission.
3. No. It is not. Only butterfly and butterfly-grasshopper folders are required!