{"contracts":{"a.sol":{"A1":{"evm":{"bytecode":{"object":""}}}}},"errors":[{"component":"general","errorCode":"3420","formattedMessage":"a.sol: Warning: Source file does not specify required compiler version! ","message":"Source file does not specify required compiler version!","severity":"warning","sourceLocation":{"end":-1,"file":"a.sol","start":-1},"type":"Warning"}],"sources":{"a.sol":{"id":0},"b.sol":{"id":1}}}