Q&A Discussions

"<div class="img"></div> " won't show when scrolling. I have this error: Cannot read property 'classList' of null

21st Jun 2018, 1:21 AM

Lynda Callen

#window.onscroll functions

3 Votes

8 Answers

21st Dec 2018, 10:49 PM

noUseForAName

Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Your result cannot contain duplicates.

sql

0 Votes

16 Answers

19th Dec 2016, 9:56 AM

Akwin Lopez

I cannot install python in Visual studio 2013. How can i do it?

computer pylint python3 visualstudio

2 Votes

ADD INDONESIAN LANGUAGE PLEASE .. cause im cannot understand in english

30th Mar 2018, 5:17 AM

Soumyadip Ray

indonesia language sololearn

-1 Vote

why I cannot perform the right output in code playground

5th Apr 2017, 4:50 PM

Putra Satria W

python

0 Votes

why is it saying EVERY ANSWERS INCORRECT? I cannot progress

3rd Jul 2016, 3:13 AM

林恩立

c#variables

0 Votes

I cannot understand function argument variables like what is argument and variable

8th Sep 2016, 2:19 PM

Su San Kresa Rudi

functions python

0 Votes

How to can do that the code of HTML cannot be modified?

13th Jul 2017, 9:33 AM

Asad Ullah Hashmi

html5

0 Votes

3 Answers

26th Jul 2018, 9:40 PM

josue Sandoval

Hi everyone I have a question.why i cannot continue my course and how can be a pro user

sololearn

1 Vote

11 Answers

25th Mar 2021, 5:26 PM

Ahmad Reza Parsizadeh

Why method printf("%s\n", "This is a string"); cannot displayed as formatted in Java sololearn?

1 Vote

Is itertools and magic methods important? Because I cannot understand any thing from it

22nd Feb 2021, 4:31 AM

Oliver Pasaribu

itertools python

0 Votes

5 Answers

15th Jun 2018, 6:54 PM

Omar

Why we cannot put' , ' after the bracket {2,3,4} and {2,3}?

3djava array java

0 Votes

why i cannot do pattern = r"(.+) /2" in "word word word"?

2nd Jan 2023, 5:47 PM

Aenul

python regular-expressions

0 Votes

How to avoid time limit exceeding because of this error I cannot execute my program.

7th Aug 2016, 9:14 PM

Benedek Máté Tóth

0 Votes

I suppose we cannot pass commandline arguments in sololearn in java?

11th Aug 2019, 1:06 PM

Ajeet Kumar Srivastava

1 Vote

I cannot understand any one can help me ? How use 2

4th Jul 2017, 10:14 AM

suryapoojary

c#help

1 Vote

Cannot figure out this error in my access modifiers project problem

26th Jan 2020, 5:24 PM

Ehsan Wattoo

access java modifiers

0 Votes

What's the point of empty tuple if it cannot be change?

9th Mar 2022, 4:53 PM

Chris

python tuples

1 Vote

Why i cannot write this see the commented below in the following program?

3rd Aug 2016, 8:11 AM

Horza Redfield

arrays c function pointers

0 Votes

3 Answers

20th Mar 2020, 12:38 PM

Yash Chaudhari

Please help with this code I cannot display the inputted data into the ViewLibrarian function block

1 Vote

9 Answers

4th Dec 2018, 4:17 PM

SingleName

Suddenly logged out and cannot log back into app on android 9

bug hackers help login sololearn

0 Votes

Please help i cannot find a way to add the c# lang

13th Jul 2022, 7:00 AM

ρү૨œdԌ૨ ×

nothing

0 Votes

Как исправить ошибку" Cannot set property 'value' of null "?

23rd May 2020, 10:07 PM

James

html javascript

0 Votes

Why I cannot create a index.php file in my computer?

23rd Dec 2016, 11:01 AM

ernwest

php

0 Votes

Why cannot we declare value of pi in datatype float

2nd Oct 2018, 9:49 AM

Abdur Rahman

in java

-1 Vote

when I write js code appendChild write in console cannot read this property what do I do?

14th Sep 2017, 9:37 AM

Avani

html javascript

2 Votes

what if i need to store values that cannot be stored in long long.

17th Apr 2020, 11:33 AM

kareem ahmed

c++data type

1 Vote

6 Answers

19th Sep 2017, 4:11 PM

shobhit

I get an ERROR (whatever my var is ) cannot be resolved to a variable

arrays java loops

1 Vote

8 Answers

15th Aug 2016, 10:45 PM

Chuckinator

we cannot override final method but can we do for static method how?

final java methods oop override static

4 Votes

I finished all of the modules bout cannot open the certificate..What to do?

12th Mar 2017, 6:52 PM

Roshan Kumar

c++certificate

1 Vote

Why I cannot open C language course in Web version of sololearn?

17th Dec 2019, 5:17 AM

Mantaqa Mansib

c sololearn website

0 Votes

What does it mean by DLLNode cannot be resolved to a type?

1st Oct 2018, 2:49 PM

Code Philanthropist

0 Votes

Please correct where I am going wrong as i cannot get output

4th Nov 2020, 4:52 AM

Gracia

python

0 Votes

why print statements cannot be used in class without main but can be used in constructor?

15th Feb 2019, 9:48 AM

TCA

0 Votes

i cannot find answer for this problem plz anyone hlp me to solve this prblm.

29th Apr 2021, 12:37 PM

Poojitha Manne

help

0 Votes

5 Answers

5th Jun 2021, 6:39 AM

swetha R

Who else freaks out when they code and cannot find why the program doesnt work😪😪

coding css freakout html java javascript python ruby

1 Vote

why its not working? it says cannot set elements (innerHTML) of null

5th Jan 2018, 9:44 PM

Alejandro López Vega

html js

0 Votes

3 Answers

4th Dec 2017, 7:00 AM

Ashraful Ash

True or False: An ordered list cannot be nested inside an unordered list.

6 Votes

0 Answers

9th Jan 2023, 2:20 PM

amr walid

Why the walrus_operator ':=' cannot be used in 🐍 CCC, even though it works in 🐍 Playground⁉️🤔

:=ccc python walrus

8 Votes

Can any body expalin raise to me?? but please use a simple english words because I cannot speak english well....and thank you

14th Oct 2020, 1:27 PM

Janusz Bujak 🇵🇱

python raise

0 Votes

29 Answers

20th May 2018, 8:22 PM

Omar

So in Ruby Constants cannot change their value in programs ?

constants ruby variables

0 Votes

What is the solution for, cannot read property 'getcontext' of null canvas

26th Sep 2017, 4:40 PM

abhinash sivan

canvas html javascript

0 Votes

How do sign in sololearn ,it has given me problems saying it cannot sign in

18th Mar 2019, 8:16 PM

Lweendela Kankoloto

html

1 Vote

How to fix these code that cannot work in github?(405 error)

18th Jun 2018, 12:52 PM

Excolevis

405error github php sql

0 Votes

what you can do in c and cannot do in java?

6th Sep 2018, 8:13 AM

freedom

c java vs

0 Votes

Why we cannot use return value types to distinguish overloaded methods??

20th Nov 2018, 2:56 PM

Programmer Raja

0 Votes

Line 0 cannot find symbol is my error. How do i fix this it's a time converter project. Please help

27th Feb 2017, 6:33 AM

JITENDRA MAURYA

In trying to create a simple budgeting tool for practice, I cannot access my bill_list dictionary sum.

-1 Vote

11 Answers

15th Sep 2022, 5:36 AM

Mark Angelo Alarcon

help practice python3

0 Votes

8 Answers

21st Sep 2020, 1:30 PM

Tyler Harvey

When we declare a class as final does it mean that we cannot create its subclasses or it cannot be the subclass of another class?

final java

0 Votes