undefinedError: Cannot read property 'trim' of undefined about less-plugin-functions HOT 5 OPEN

Getting the same error. Looks like it has to do with args being undefined in lib/tinyargs.js

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Just a error message text is totally useless. Please at least show the code you get the error with (and the more information never hurts - see for example https://github.com/necolas/issue-guidelines/blob/master/CONTRIBUTING.md#bug-reports.

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$ lessc --functions px2rem.less
undefinedError: Cannot read property 'trim' of undefined

from less-plugin-functions.

同样遇到，请问解决了没？

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Hello, Im having the same issue, I'm doing the following:

I took the example code from the repository:

.function {
    .foo(@x) {
        return: @x * 2;
    }
}

div {
    width: foo(21em); // -> 42em
}

Then I run the following command (Im in windows using lessc 4.1.2):

lessc --functions test.less

Then i get this message: undefinedError: Cannot read properties of undefined (reading 'trim')

Is there any recommendation to avoid this?

Thanks a lot!

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