After installing the FTB Launcher I got a message to migrate some data. After clicking yes a new messaged popped up stating a Migration Error and a link to a created errorlog.
In this link you will find the reason for this error.
What i had to do:
In line 28 the error cause is stated. The file settings.json couldnt be migrated. To fix this I just created new path (marked green) and just moved the file from the red marked old path.
In this link you will find the reason for this error.
What i had to do:
In line 28 the error cause is stated. The file settings.json couldnt be migrated. To fix this I just created new path (marked green) and just moved the file from the red marked old path.