Schematic conversion does not work

[SpintroniK]

The PCB conversion works well, however, when I try to convert the schematic file, I get the following warning:
warning: input file 1-Schematic_PiezoBoard.json is not a valid EasyEDA configuration file.
The file has been exported recently from easyeda, and contains the following field : "editorVersion":"6.4.30".
Is there a way to get around this problem?

[eutampieri]

This is the correct encodeValue() in spectra.js

function encodeValue(value) {
    if (value === undefined) {
        return "unspecified";
    }
    if (typeof value === 'string') {
        return encodeString(value);
    }
    if (typeof value === 'number') {
        return encodeNumber(value);
    }
    return encodeObject(value);
}

Adding handling for undefined fixed this for me. Also, new versions use integer docTypes, so this has to be fixed too.