Invalid nonce error

[JsonSam]

Getting the following error often while making requests.
Response:
invalid nonce parameter; on key:1418802852, you sent:'1418802852', you should send:1418802853"} | invalid nonce parameter; on key:1418802852, you sent:'1418802852', you should send:1418802853

How can this be resolved?

[jorgefuertes]

'invalid nonce parameter; on key:1497284832, you sent:'1497284832', you should send:1497284833'

Same problem here, not always but a lot of times.