Totally misleading error on non-string version

[Facundo Batista]

I had this in my snapcraft.yaml:

    version: 8.1

the error it gave me was:

Issues while validating snapcraft.yaml: The 'version' property does not match the required schema: 8.1 is not a valid snap version string. Snap versions consist of upper- and lower-case alphanumeric characters, as well as periods, colons, plus signs, tildes, and hyphens. They cannot begin with a period, colon, plus sign, tilde, or hyphen. They cannot end with a period, colon, or hyphen.

However, my 8.1 totally matched what was described there!!!

Turns out (I guess) that the problem was that it was a number, I changed it to

    version: "8.1"

and it seems to work ok now.

So, snapcraft should first check if it's a string or not, and error out with something like "The 'version' property needs to be a string, found a float".

[Sergio Schvezov (sergiusens)]

https://github.com/snapcore/snapcraft/pull/2497