Kactus failed to launch 'TypeError: Cannot read property 'replace' of undefined'
## Description
I cloned a repository that was created and uploaded to GH by another employee using Kactus. I selected the project. I immediately received the error "Kactus failed to launch".

TypeError: Cannot read property 'replace' of undefined
    at a.exec (/webpack:/renderer.js:6:1)
    at ChildProcess.exithandler (child_process.js:279:7)
    at emitTwo (events.js:126:13)
    at ChildProcess.emit (events.js:214:7)
    at maybeClose (internal/child_process.js:925:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)

I am now stuck in an unrecoverable loop where Kactus won't launch due to error, but I cannot quit or force quit because kactus starts up and jumps into the error.

Per instructions, I have restarted Kactus several times. Each time, I get this error. I uninstalled kactus, downloaded from the kactus.io from the website and reinstalled kactus. Both versions were 0.3.19 of kactus. I received the same error on startup.

I killed all Kactus processes use ps -eaf | grep kactus and kill -9 ... (because Kactus kept looping into the error). I deleted the /Users/username/Library/Saved Application State/io.kactus.KactusClient.savedState and restarted kactus. Same error.

I killed all Kactus processes. I deleted all my repos from /Users/username/Documents/Kactus. Restarted kactus. Kactus started telling me it couldn't find my repos.

## Version
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* Kactus: 0.3.19
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* Operating system: Mac OS 10.14.2


## Steps to Reproduce
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### Expected Behavior
Kactus to launch

### Actual Behavior
Kactus launched with error and there was no way for me to quit or recover.

## Additional Information
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### Logs
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[2019-02-08.kactus.production.log](https://github.com/kactus-io/kactus/files/2846393/2019-02-08.kactus.production.log)