I broke the install button on my web store page in version 3.0.1 with supporting 6 languages.
After finding issues with language support I have rolled back the 6 localized languages for the time being until the store goes international. I believe this fixed the aw snap install error. So please try installing Chrome Editor again from the web store.
I’ve sorry I cannot currently support international languages until google rolls out the international version of the web store later this year.
I try to be on the cutting edge with my Google Web Store apps so that I can gain better credibility and developer points.
Apparently their are not really any web store apps in localized builds so I think mine was the first. The only problem with being the first is that my app was not working. I did write a post on the Chromium Apps group on google looking for an answer.
So try out Chrome Editor 3.0.2 today and in the future Chrome Editor will support localized builds.
This has been resolved at the moment their was an issue with the Portuguese localized version. I may support it in the future. Currently there are 5 languages supported.