TypeError: Path must be a string. Received undefined

[samanmohamadi]

Seems to be node v6 error.
Gettign this error when trying to send photo as stream :
bot.sendPhoto(id,stream)

Error:

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.basename (path.js:1355:5)
    at TelegramBot._formatSendData (/srv/http/bot/node_modules/node-telegram-bot-api/lib/telegram.js:350:35)
    at TelegramBot.sendPhoto (/srv/http/bot/node_modules/node-telegram-bot-api/lib/telegram.js:407:26)
    at onWidthFound (/srv/http/bot/watermark.js:37:11)
    at ChildProcess.exithandler (child_process.js:193:7)
    at emitTwo (events.js:106:13)
    at ChildProcess.emit (events.js:191:7)
    at maybeClose (internal/child_process.js:850:16)
    at Socket.<anonymous> (internal/child_process.js:323:11)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at Pipe._handle.close [as _onclose] (net.js:492:1
```2

[GochoMugo]

Please ensure stream is actually a Stream and not undefined as the error explains. It is detected as a stream at this point in the code.

[GochoMugo]

Your bug might have been addressed in this PR. Please confirm so we can close this issue.

[samanmohamadi]

unfortunately I don't work on that project and I can't test it right now, So I close this issue hope problem has been solved.