Error when polling: Subscript used on non-accessible variable

[LaOrhyUAcMji]

This is the error message:

Line 794 [in](https://www.autoitscript.com/autoit3/docs/keywords.htm) Telegram.au3
$OFFSET = $msgData[0] + 1
$OFFSET = $msgData^ERROR
Error: Subscript used on non-accessible variable

It was solved by @Jos on the AutoIt forum, please check complete thread here: Subscript used on non-accessible variable https://www.autoitscript.com/forum/topic/186381-telegram-bot-udf/page/6/#comments

Suggested Changes (in Telegram.au3): Try replacing func __MsgDecode() with this version first as that will likely solve it for you:

Func __MsgDecode($Update)
    Local $json = Json_Decode($Update)

    ;@PRIVATE CHAT MESSAGE

    If (Json_Get($json, '[result][0][message][chat][type]') = 'private') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _
                Json_Get($json, '[result][0][message][message_id]'), _
                Json_Get($json, '[result][0][message][from][id]'), _
                Json_Get($json, '[result][0][message][from][username]'), _
                Json_Get($json, '[result][0][message][from][first_name]') _
                ]

        If (Json_Get($json, '[result][0][message][text]')) Then $msgData[5] = Json_Get($json, '[result][0][message][text]')

        ; TODO: Media recognition

        Return $msgData

        ;@GROUP CHAT MESSAGE (Inlude left/new member events)
    ElseIf (Json_Get($json, '[result][0][message][chat][type]') = 'group') Or (Json_Get($json, '[result][0][message][chat][type]') = 'supergroup') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][message][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][message][from][id]'), _ ;[2] = User ID
                Json_Get($json, '[result][0][message][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][message][from][first_name]'), _ ;[4] = Firstname
                Json_Get($json, '[result][0][message][chat][id]'), _ ;[5] = Group ID
                Json_Get($json, '[result][0][message][chat][title]') _ ;[6] = Group Name
                ]

        If (Json_Get($json, '[result][0][message][left_chat_member]')) Then
            $msgData[7] = 'left' ;[7] = Event
            $msgData[8] = Json_Get($json, '[result][0][message][from][id]') ;[8] = Left member ID
            $msgData[9] = Json_Get($json, '[result][0][message][from][username]') ;[9] = Left member Username
            $msgData[10] = Json_Get($json, '[result][0][message][from][first_name]') ;[10] = Left member Firstname
        ElseIf (Json_Get($json, '[result][0][message][new_chat_member]')) Then
            $msgData[7] = 'new' ;[7] = Event
            $msgData[8] = Json_Get($json, '[result][0][message][from][id]') ;[8] = New member ID
            $msgData[9] = Json_Get($json, '[result][0][message][from][username]') ;[9] = New member Username
            $msgData[10] = Json_Get($json, '[result][0][message][from][first_name]') ;[10] = New member Firstname
        Else
            $msgData[7] = Json_Get($json, '[result][0][message][text]') ;[7] = Text
        EndIf

        Return $msgData

        ;@EDITED PRIVATE CHAT MESSAGE
    ElseIf (Json_Get($json, '[result][0][edited_message][chat][type]') = 'private') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][edited_message][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][edited_message][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][edited_message][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][edited_message][from][first_name]') _ ;[4] = Firstname
                ]

        If (Json_Get($json, '[result][0][edited_message][text]')) Then $msgData[5] = Json_Get($json, '[result][0][edited_message][text]') ;[5] = Text (eventually)

        ;Insert media recognition here

        Return $msgData

        ;@EDITED GROUP CHAT MESSAGE
    ElseIf (Json_Get($json, '[result][0][edited_message][chat][type]') = 'group') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][edited_message][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][edited_message][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][edited_message][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][edited_message][from][first_name]') _ ;[4] = Firstname
                ]

        If (Json_Get($json, '[result][0][edited_message][text]')) Then $msgData[5] = Json_Get($json, '[result][0][edited_message][text]') ;[5] = Text (eventually)

        ;Insert media recognition here

        Return $msgData

        ;@CALLBACK QUERY
    ElseIf (Json_Get($json, '[result][0][callback_query][id]') <> '') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][callback_query][id]'), _ ;[1] = Callback ID
                Json_Get($json, '[result][0][callback_query][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][callback_query][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][callback_query][from][first_name]'), _ ;[4] = Firstname
                Json_Get($json, '[result][0][callback_query][data]') _ ;[5] = Callback Data
                ]

        Return $msgData

        ;@INLINE QUERY
    ElseIf (Json_Get($json, '[result][0][inline_query][id]') <> '') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][inline_query][id]'), _ ;[1] = Inline Query ID
                Json_Get($json, '[result][0][inline_query][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][inline_query][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][inline_query][from][first_name]'), _ ;[4] = Firstname
                Json_Get($json, '[result][0][inline_query][query]') _ ;[5] = Inline Query Data
                ]

        Return $msgData

        ;@CHANNEL MESSAGE (Where bot is admin)
        ; Sample JSON:
        #comments-start
            {"ok":true,"result":[{
                "update_id":<int>,
                "channel_post":{
                    "message_id":<int>,
                    "chat":{
                    "id":<int>,
                    "title":"<string>",
                    "type":"channel"},
                    "date":<int>,
                    "text":"<string>"
            }}]}
        #comments-end
    ElseIf (Json_Get($json, '[result][0][channel_post][message_id]') <> '') Then
        Local $msgData[5] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][channel_post][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][channel_post][chat][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][channel_post][chat][title]') _ ;[3] = Firstname
                ]

        If (Json_Get($json, '[result][0][channel_post][text]')) Then
            $msgData[4] = Json_Get($json, '[result][0][channel_post][text]') ;[4] = Text (eventually)
        EndIf

        Return $msgData

        ;@EDITED CHANNEL CHAT MESSAGE
    ElseIf (Json_Get($json, '[result][0][edited_channel_post][chat][type]') = 'channel') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][edited_channel_post][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][edited_channel_post][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][edited_channel_post][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][edited_channel_post][from][first_name]') _ ;[4] = Firstname
                ]

        If (Json_Get($json, '[result][0][edited_channel_post][text]')) Then $msgData[5] = Json_Get($json, '[result][0][edited_channel_post][text]') ;[5] = Text (eventually)

        ;Insert media recognition here

        Return $msgData
        ;@EDITED CHANNEL CHAT MESSAGE
    ElseIf (Json_Get($json, '[result][0][my_chat_member][chat][type]') = 'group') Then
        Local $msgData[10] = [ _
                Json_Get($json, '[result][0][update_id]'), _ ;[0] = Offset
                Json_Get($json, '[result][0][my_chat_member][message_id]'), _ ;[1] = Message ID
                Json_Get($json, '[result][0][my_chat_member][from][id]'), _ ;[2] = Chat ID
                Json_Get($json, '[result][0][my_chat_member][from][username]'), _ ;[3] = Username
                Json_Get($json, '[result][0][my_chat_member][from][first_name]') _ ;[4] = Firstname
                ]
        $msgData[5] = ""
        If (Json_Get($json, '[result][0][my_chat_member][text]')) Then $msgData[5] = Json_Get($json, '[result][0][my_chat_member][text]') ;[5] = Text (eventually)

        ;Insert media recognition here

        Return $msgData

    EndIf

EndFunc   ;==>__MsgDecode

Please do look into this and update the UDF accordingly. Thanks.