# umxVersion() vs. umxVersion(“umx”).

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Joined: 07/31/2009 - 14:25
umxVersion() vs. umxVersion(“umx”).

"How much of a problem is this error when we run umXVersion(“umx”)?:

"Error in mxOption(model, "Default optimizer") : trying to get slot "options" from an object of a basic class ("character") with no slot?”

You should just run
umxVersion()

It is thinking that the first item you provide is a model, and tries to see what version you ran under.