scratch won't connect to tello drone

[jboxer]

My tello drone won't connect to my scratch application.

When I run the command "node Tello.js" in the command prompt, this is the error message I get:

---------------------------------------
Tello Scratch Ext running at http://127.0.0.1:8001/
---------------------------------------
events.js:291
throw er; // Unhandled 'error' event
^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
at writeAfterEnd (_http_outgoing.js:653:15)
at ServerResponse.end (_http_outgoing.js:773:7)
at Server.<anonymous> (C:\Users\jack\Downloads\Scratch\Scratch\Tello.js:151:11)
at Server.emit (events.js:314:20)
at parserOnIncoming (_http_server.js:782:12)
at HTTPParser.parserOnHeadersComplete (_http_common.js:119:17)
Emitted 'error' event on ServerResponse instance at:
at writeAfterEndNT (_http_outgoing.js:712:7)
at processTicksAndRejections (internal/process/task_queues.js:81:21) {
code: 'ERR_STREAM_WRITE_AFTER_END'
}

Does anyone know how I can fix this?

 

[Nigel Jones]

Hi, I have a similar problem. Did anyone locate a fix for you?

---------------------------------------
Tello Scratch Ext running at http://127.0.0.1:8001/
---------------------------------------
events.js:292
throw er; // Unhandled 'error' event
^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
at writeAfterEnd (_http_outgoing.js:668:15)
at ServerResponse.end (_http_outgoing.js:788:7)
at Server.<anonymous> (C:\Users\Nigel\Downloads\Scratch\Scratch\tello.js:151:11)
at Server.emit (events.js:315:20)
at parserOnIncoming (_http_server.js:874:12)
at HTTPParser.parserOnHeadersComplete (_http_common.js:126:17)
Emitted 'error' event on ServerResponse instance at:
at writeAfterEndNT (_http_outgoing.js:727:7)
at processTicksAndRejections (internal/process/task_queues.js:81:21) {
code: 'ERR_STREAM_WRITE_AFTER_END'
}

 

[triangle687]

Hi, I saw the same error and I find on github version of files which works: yiupa/tello-scratch-extension

 

[MolePilot]

Hi, I have a similar problem. Did anyone locate a fix for you?

---------------------------------------
Tello Scratch Ext running at http://127.0.0.1:8001/
---------------------------------------
events.js:292
throw er; // Unhandled 'error' event
^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
at writeAfterEnd (_http_outgoing.js:668:15)
at ServerResponse.end (_http_outgoing.js:788:7)
at Server.<anonymous> (C:\Users\Nigel\Downloads\Scratch\Scratch\tello.js:151:11)
at Server.emit (events.js:315:20)
at parserOnIncoming (_http_server.js:874:12)
at HTTPParser.parserOnHeadersComplete (_http_common.js:126:17)
Emitted 'error' event on ServerResponse instance at:
at writeAfterEndNT (_http_outgoing.js:727:7)
at processTicksAndRejections (internal/process/task_queues.js:81:21) {
code: 'ERR_STREAM_WRITE_AFTER_END'
}

I had the same issue and contacted Tello customer support. They suggested using Node JS version 8 and this worked for me!

 

[MolePilot]

I had the same issue and contacted Tello customer support. They suggested using Node JS version 8 and this worked for me!

I have also asked them to update their documentation here: https://terra-1-g.djicdn.com/2d4dce...Scratch 0320 修改/Tello Scratch README 0320.pdf

 

[TGeorges]

Hi, I have a similar problem. Did anyone locate a fix for you?

---------------------------------------
Tello Scratch Ext running at http://127.0.0.1:8001/
---------------------------------------
events.js:292
throw er; // Unhandled 'error' event
^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
at writeAfterEnd (_http_outgoing.js:668:15)
at ServerResponse.end (_http_outgoing.js:788:7)
at Server.<anonymous> (C:\Users\Nigel\Downloads\Scratch\Scratch\tello.js:151:11)
at Server.emit (events.js:315:20)
at parserOnIncoming (_http_server.js:874:12)
at HTTPParser.parserOnHeadersComplete (_http_common.js:126:17)
Emitted 'error' event on ServerResponse instance at:
at writeAfterEndNT (_http_outgoing.js:727:7)
at processTicksAndRejections (internal/process/task_queues.js:81:21) {
code: 'ERR_STREAM_WRITE_AFTER_END'
}

Download Node js version 12.14

 

[filfoto]

Version 12.14 worked for me. Thank you! Here's the download page for this version:

Index of /download/release/v12.14.0/

 

[vk2yacc]

Hi
I'm trying to connect to the Tello EDU through scratch
Been through the setup
- running nodeJS v 16.14.2 LTS to get Tello Scratch Ext running on http://127.0.0.1:8889
- connect to Tello drone Wifi
- run Scratch with Tello extensions

But cannot connect to the drone
- drone continues to 'yellow flash' showing no connection
- Scratch shows 'red' light on Tello Control with 'cannot find helper app'

Should be straight forward but not so
Any ideas?

 

[filfoto]

Hi
I'm trying to connect to the Tello EDU through scratch
Been through the setup
- running nodeJS v 16.14.2 LTS to get Tello Scratch Ext running on http://127.0.0.1:8889
- connect to Tello drone Wifi
- run Scratch with Tello extensions

But cannot connect to the drone
- drone continues to 'yellow flash' showing no connection
- Scratch shows 'red' light on Tello Control with 'cannot find helper app'

Should be straight forward but not so
Any ideas?

You need to use an older version of NodeJS. See my download link for V12 above.

 

[vk2yacc]

You need to use an older version of NodeJS. See my download link for V12 above.

Thanks - working ok now

 

[rintintin]

La versione 12.14 ha funzionato per me. Grazie! Ecco la pagina di download per questa versione:

Indice di /download/release/v12.14.0/

anche io ho lo stesso problema. mi puoi aiutare a capire come fare a installarlo? ho scaricato il .exe ma quando lo apre non parte la installazione ma si apre una finestra prompt:
Benvenuto in Node.js v12.14.0.
Digita ".help" per ulteriori informazioni.
>

non so come proseguire, sono andato su help ma non saprei che fare.
grazie per eventuali info.

 

[filfoto]

anche io ho lo stesso problema. mi puoi aiutare a capire come fare a installarlo? ho scaricato il .exe ma quando lo apre non parte la installazione ma si apre una finestra prompt:
Benvenuto in Node.js v12.14.0.
Digita ".help" per ulteriori informazioni.
>

non so come proseguire, sono andato su help ma non saprei che fare.
grazie per eventuali info.

Maybe try downloading the .msi instead of the .exe and see if that works.

 

[rintintin]

Maybe try downloading the .msi instead of the .exe and see if that works.

grazie ho scaricato .msi versione 8 e funziona grazie

 

[filfoto]

grazie ho scaricato .msi versione 8 e funziona grazie

You're welcome! Glad it worked for you.