austron this happened to me because i downloaded the folder instead of the file.. just delete it and then install the file only... let me know how it works out
most probably you were using Bike or Design v1.2, which was buggy. unfortunately i forgot to change the download link in the original announcement ( "Bike or Design" v1.2 released).
use v1.2a (see Bug fixes) and everything should be fine!
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