FAQ Section: Debugging

Frequently Asked Questions
, ,
1

Introductory

Testing techniques, including Do It - MIT

Sample Connect -> Companion sequence - @ABG

How to Read and Understand a Runtime Error Message - @ABG

Common Runtime Errors - @TimAI2

How to Teach Debugging thread - Feb 2025

Advanced

Do It' to view procedure results, event arguments and local variables

How to run Logcat

How to use Do It in a loop

Screen1.ErrorOccured message numbers

SteveJG monster list of things you should not do

How to show raw responseContent from your app when debugging - TimAI2

Video of copying Do It responseContent results into a board post - ABG

Try/Catch Extension - Kodular

AI2Debug Extension: Helps tracing runtime errors - @Kumaraswamy

Logging Tools

Logging to a list

Logging to TinyDB

Logging to a Textbox

Logging last 5 to a TextBox

4 Likes
Saving and retrieving values from a database
Tinydb import data and split into variables
Original index from sheet after using Query functions from web app script
Add list item to list, items changed order
Change from 24 hour format to 12 hour format
Text to speech and split text
I am trying to display the patient's sugar, oxygen and sugar level
How to show raw responseContent from your app when debugging
Runtime Error - Daily Planner App
Downloading the app inventor setup software
Debugging confusion
About TinyDB to show item by item
How do you extract data from a json array?
Error while downloading APK, pls answer fast
Bad arguments to select list item , the operation select list item cannot acccept the arguments:{"<!doctype"}
How do you make idle game add points when game isn't running?
Catch runtime error / Identify the blocks that cause it
Problem with aab and apk file (and with aia!)
How to send a 4 x int16_t structure on bluetooth
Problems with checking values with sha256 encrypting
Error message: The operation + cannot accept the arguments "", ""
Im making a simple app that identifies if you are late or not using if and else block
Error message is "The operation + cannot accept the arguments: , ["ot Fo"], [1]"
How do I know if the pictures saved or not?
Help me please, Get data from firebase
CustomWebView : An extended form of Web Viewer
Make (Vaccination) reminder based on schedule
LoadImageAsync not loading image (Circular property)
Significant figures/ significant digits
Sending data from a google sheet to another and delete the date from the first google sheet
Crash app multiscreen
Time interval in milliseconds between two events
Continuing to Get Error _____ when we try to add things to tinyDB and retrieve things to ListView
Permission and colons in file names problem
Android permissions - BLE - Android 12
Loops and procedure problem
Why my "do it" in the right click is grey?
Indicate the error in the blocks with a yellow color
Replacement Does Not Work | Array and " " Visible In Screen Passed Text On Other Screen
:red_square: [FREE] SimpleSqlite - an extension for working with SQLite Databases
Apk to html file wont open
The operation select list item connot accept the arguments
Conversione stringa (String conversion)
Problem with BLE, slider to byte, and now build export crashing on phone
Cannot convert element to integer AGAIN and AGAIN and AGAIN
Estoy haciendo un juego de busqueda del tesoro pero cuando lo inicio me sale esto (I'm doing a treasure hunt game but when I start it I get this)
How do you download image?
Delay on loading screen or bug
Topic REgarding Debugging
BT paired devices empty list
Do my Indexes match my Code? (Bluetooth classic)
AI2LiveDebug: Helps tracing problems and runtime errors
Read with exact filter - works on columns, can it also work on rows?
How can i split a string by a newline which was taken as a input from a multiple line text box
How can I create data storage using clock component and display it in a table using calendar?
Why does my screen change when an Image Sprite hits another Sprite
Incrementing a key value in the dictionary
How do I improve the speed of packaging APK?
Property setter was expecting a com.google.appinventor.components.runtime.Label component but got a YailList instead
Index in list is randomly changing
Operation replace list item cannot accept the arguments
ERREUR avec la GOOGLE SHEET
Find the for loop index too large : (Select list item : Attenpt to get list item no. 2 of list of length 1?
Difference in output of text length depending on from where it comes, list direkt, or list with blocks between
Screen vs variable initialisation
Error...is not a well-formed list of pairs?
Add items to list is not exactly working
Add dictionary entries to list, incremental then display in a list?
The width of a drawing area is generally only set with the second (same) command. Why?
Need help on my sms app
ERROR: aught exception in inliner for #<procedure
Connection Error Question
Chasing an error
Help me fix this bug
Medication Reminder (again)
Firebase vs Lists & Listview?
AI2 companion for my apps stops suddenly without any error message
Help me solve a randomize list problem
Common Runtime Errors
How to Read and Understand a Runtime Error Message
MIT App Storage Capacity
Set listview to only first item
Error while running the program
Using HorizontalViewPager1 instead of Canvas and Imagespirite
Need assistance fixing a contain text for my black jack game
Guessing Game Issue?
Medication Reminder (again)
Store variable into list - could not fit int to byte error 514
Canteen App (Cart)
Using HorizontalViewPager1 instead of Canvas and Imagespirite
Error al multiplicar
I want to store the data from a text from one screen to another to translate it
How do you download image?
Error while calculating straight distance between two locations (latitude, longitude)
Firebase data is not loading
Listview display changed
How can i delete from cloudDB with a make list tag?
What is the problem with my deletion block as it doesnt work?
Search within a range
How can I create a slideshow in which images can be updated through some websites or firebase etc instead of reupdating app for replacing image?
Help to show data from arduino to label
Trying to fetch and display information using an API Key
Issues with JSON Formatting for Google Translate API
Difficulties parsing with "list from csv row"
Timer not working next day
[PAID] :alarm_clock: Alarm Manager Extension with Notification or Autostart
Getting system messages, "Bad arguments to", while using WIFI and BLE
BluetoothBLE run time failure.
Give some tips to create an app that has options to get ecommerce selling data like 1) Product Name, 2) Product image, 3) Price etc
My URL module didn't work correctly from two month ago
How do I create an app like user can share points to another user
Some help with check box list
Trying To Program Checkbox Selection Clicks In Software
Bad arguments to select list item
Saving data to sheets
Saving data to sheets
How do you skip the title row in Google Sheets using the gVizQuery?
Joining a variable to a URL?
[FREE] Alarm Extension
I cannot insert rows in Sqlite
Issues with POST in web component
Price calculator
How do I teach the basics of debugging /error-checking?
How do I teach the basics of debugging /error-checking?
How do you get the name of a procedure's immediate caller?
That project is working well seperately but when merging it into my project am getting that error
Error: invalid list of pairs: list of pairs to dict is not a well formed list of pairs
'make a new filtered list'
How can I make GPS control my lawn mower
Bad arguments to add items to list?
That project is working well seperately but when merging it into my project am getting that error
What should change with ASD used in Android 14?
Line Chart with time on x axis
Image selection doesn‘t work
Getting random key from nested dictionary
Constant errors concerning list item selection and replacement
List view with details shown in notification
Edit image and save to the gallery
Live test in browser
Trying to store a dictionary in tinyDB, and it's not working
No Activity found to handle Intent { act=android.speech.action.RECOGNIZE_SPEECH (has extras) }
Picking an image and copying it to ASD
Errore nella cancellazione
Whole section / frame no longer visible
Why aren't my labels changing or alerts appearing?
Problem with displaying full text in blocks
Trying to get text from csv file after picking in listview
[FREE] ASD Downloader Extension - Download and manage files in ASD
The operation - cannot accept the arguments: [" "], [" "]
My project doesn’t respond when clicking “Register” or “Login” button
[FREE] FluxGenerator Extension: AI Images for free daily with support for consistent characters using seeds
Error 2104 I need help
How do you use a Wheatstone Bridge to calculate Resistance using Bluetooth?
MYPLTW 1.24 survey
Block web erreur 1101 : Unable to get a response with the specified URL
Timer and display data
Help to complete an exercise
[Free/Paid] Extension - Machine Learning regression models
TinyDB CSV Export issues
VideoPlayer - Play videos from local files or URLs in an HVArrangement or Dialog
For some reason I can't store a variable in a dictionary value
No permission to send .3gp soundfile to Telegram bot
SQLite and dates
TinyDB Help/Malfunction
Test php no result
Button does not do anything when pressed
Gpa calculator issues
Help Needed: AI Chatbot for a school project
Ajuda para criar app MIT App Inventor que detecta dia/noite via LDR com ESP32-C6 Wi-Fi
Send a message if the text doesn't exist in the list
Button does not do anything when pressed
How do you save a photo taken with camera in a subfolder?
Texting not receiving in a demo app, works fine in a simple display test though
Playing recorded sounds of configurable piano keys on another screen
CloudDB and Retrieves Data
How do I read external html file using taifun files?
How do I teach the basics of debugging /error-checking?
Help me fix some problem for my Sorting (name and score)
Importing data from a csv file
Calories tracking app
I want to view the first title of a xml file at label
File Blocks Data base puzzle
Can someone please help me with my code in snakes and ladders
Im confused on my coding and need help
Telegrambot How to write user message and catch bot's reply?
Post image or file through form-data
On the tablet, the application does not open
Help to find solution for my error
Creat marker do not regen markers
Runtime error "java.util.List.iterator() on a null object reference"
Runtime error "java.util.List.iterator() on a null object reference"
Duration between times
Is there a problem with trying to clear list?
Literally can't retrieve data from lists stored in TinyDB
Error 2104 Need help fixing
First time and trouble with multiple sensor program
Trouble setting up APP
Populate a tableview from textfile containing a list of names
List view component not wark properly
If condition not satisfied
How do I set an open listpicker to another list? (Newb mistakes?)
RE: "App inventor is unable to build this project" error, "The compiler output error was"
Saving files 0 bytes
Mit apps keeps reading null value from thingspeak
Delete last line data on the label
Anyone please tell me Exception Handing in mit app inventor