Errro when using arduino MKR/Zero or One

[cholopa]

Hi:

Don't know if this is the right place to ask this....

When tring to use yor library with MKR1010, one or zero I get this error:

In file included from C:...\Arduino\pista_x_mkr_V2\pista_x_mkr_V2.ino:21:0:

"c:....\Arduino\libraries\Dictionary\src/Dictionary.h: In member function 'arduino::String Dictionary::json()':
c:...\Arduino\libraries\Dictionary\src/Dictionary.h:566:9: error: ambiguous overload for 'operator=' (operand types are 'arduino::String' and 'char')"

In row 21 of "pista_x_mkr_V2.ino", I have: "#include <Dictionary.h>"

This issue happens to me even with the examples. Do you know what can be the issue?. I have tried old versions of the library, and below version 3.0.0 it compiles, but I can't use it as I need to use JSON strings.

Thanks in advance.