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Trying to work through the Quick Start: Lightning Web Components trailhead and getting the following error while running command: 

force:org:create -f config/project-scratch-def.json --setalias HelloWorldLightningWebComponent --durationdays 30 --setdefaultusername

ERROR: The configured apiVersion 45.0 is not supported for this org. The max apiVersion is 44.0.

I did not set up a new dev hub environment, but rather enabled devhub in my old dev environment. Tried updating sfdx-project.json to include "sourceApiVersion": "44.0". but no luck.

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  • The Spring '19 pre-release signup is now live. Updated the link in the answer.
    – Jayant Das
    Commented Dec 13, 2018 at 17:13

1 Answer 1

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UPDATE

Just got an update that the Spring '19 pre-release signup link is now live. You can access it on this link.

You are getting this error because the LWC project expects a version 45.0 (Spring '19 pre-release org), whereas the current DE sandboxes are still on version 44.0 (Winter '19).

You will need to signup for the Spring '19 pre-release DE Org to be used as DevHub for this module. And as of now that's not available, unless you already have a sandbox which has been upgraded to Spring '19.

I was in same situation this morning and found out that the signup for pre-release DE Org is not live yet. Refer to this tweet for response from Salesforce.

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  • Yeah, the trailhead kind of fails to mention this, as far as I can tell.
    – sfdcfox ♦
    Commented Dec 13, 2018 at 16:51
  • @sfdcfox True. I actually was exactly in this situation when went back and realized I need a Spring '19 org for this module. Then while signing up, couldn't do so.
    – Jayant Das
    Commented Dec 13, 2018 at 16:52
  • Yeah, I was just trying a trailhead this morn. I think LWC is going to change the way we do things, but a bit annoying they announced it without specifying special hoops
    – sfdcfox ♦
    Commented Dec 13, 2018 at 16:54
  • I could just imagine, there's a lot of excitement around it from this morning, the time it was announced. I think I haven't seen anything like this which is GA without releasing a beta in first place.
    – Jayant Das
    Commented Dec 13, 2018 at 16:55
  • That's because they've been secretly testing it for a year. I noticed it a few months ago and I wrote it off as some Aura oddity, but I've known about this for a while. Like you'll write a component that uses lightning:button, but if you debug it in the Lightning Debugger, it shows up as a lightning-button, basically a first-class citizen of Lightning, which struck me as odd.
    – sfdcfox ♦
    Commented Dec 13, 2018 at 16:58

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