[Masonry] The property "columnClassName" requires a string - Error shows in Chrome console

[harikrishnanp]

I'm using react-masonry-css module. Recently I'm getting the below error in my Chrome Console. Any common reason for this error?

[Masonry] The property "columnClassName" requires a string myJSFile:formatted:3200

When I went to the JS file line number which shows error, I got the below code.

key: "logDeprecated", value: function(t) { console.error("[Masonry]", t) }

Please advice.

[amillward]

Adding <Masonry columnClassName="".../> solved this for me. But ideally this shouldn't be required

[harikrishnanp]

@amillward The same worked for me as well. After adding the above prop the error message has disappeared.