Trying the following markup in a template:

    label="Radio Group" 

Will result in the following error:

Error: Unknown public property "variant" of element . This is likely a typo on the corresponding attribute "variant".

This is strange since the radio-group specifications state that this is supported.

Any ideas?

1 Answer 1


The variant attribute was added in summer19

When you are on playground or org < summer 19 (which should in theory not exist anymore): playground is running an older version than platform, orgs < summer19 too

When you get the error on summer19 orgs: You should contact SFDC Support - it should work

  • It's a shave that the playground is behind the current release. Jul 4, 2019 at 6:03

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