Error: Counting Objects
## Description
My designer reported getting this issue from the following steps:

> I added a new file to the master branch and then created a working branch to look through some existing files. 
I was having issues where I accidentally opened a file on the master branch and, without changing anything, Kactus showed a series of changes. 
After seemingly resolving those issues, I started working on my file on my new branch and started receiving these errors. 

## Version
* Kactus: 0.3.12
* Operating system: Mac os X 10.12.6


## Steps to Reproduce
Sorry not available 

### Expected Behavior
No error

### Actual Behavior
Error 
![download](https://user-images.githubusercontent.com/39928550/44676060-09b20000-a9e7-11e8-9840-87cbb32faf81.jpeg)



## Additional Information

### Logs
[Archive.zip](https://github.com/kactus-io/kactus/files/2324991/Archive.zip)

