Q&A Discussions

Uncaught type error; cannot read properties of getContext JAVASCRIPT

4th Jun 2023, 5:47 AM

Philip Simonson

game-development javascript js

0 Votes

error: non-static variable introduction cannot be referenced from a static context!

8th Mar 2022, 5:06 AM

Rafin

java methods

2 Votes

4 Answers

11th Jun 2019, 2:41 AM

Reza

Uncaught TypeError: Cannot set property 'innerHTML' of null

ammu

0 Votes

My App cannot connect to the internet.

21st Apr 2018, 7:56 AM

ammu

1 Vote

I cannot run basic code in python

12th Jan 2018, 5:59 AM

Matiu

python python3

0 Votes

Uncaught TypeError: Cannot read properties of null (reading 'addEventListener')

8th Jun 2017, 4:43 AM

Aayam Aashish Pradhan

html javascript

1 Vote

I cannot open any web codes anymore. Please help!

10th Feb 2022, 2:32 AM

MANIKANDAN S

asap help please virus

3 Votes

Why there is Error like CANNOT FIND SYMBOL in Output?

8th Jan 2019, 5:13 PM

Justin Luttkau

java methods parameter

1 Vote

The Foo() method cannot be overridden in a child class. Why?

26th May 2022, 11:51 AM

We Doru

a be cannot child class.foo()in method overridden the

1 Vote

Why main method cannot be instantiated in JAVA ?

27th Jun 2020, 5:12 AM

sudan kc

is java maininstantiation mainmethod static staticmain whymain

0 Votes

we cannot create object of any class in switch case directly. Why?

17th Feb 2018, 8:39 PM

Shubham Chaurasiya

c++

0 Votes

7 Answers

25th May 2024, 5:49 PM

Rishi

Cannot read property "getContext" of null??arc() problem

arc arc()canvas circle html javascript js

-1 Vote

Why cannot get output at code playground?

28th Feb 2017, 9:12 AM

Foxtrot Pipe

code codeplayground variables

0 Votes

i cannot play videos or Audios in my browser..using html5.. should i need internet because i cannot play in offline..??

14th Feb 2017, 12:16 PM

freedom

html5 webpage

3 Votes

cannot create an instance of an abstract class ScrollBar

12th Jun 2017, 11:42 AM

Ramanan S

abstract-classes

0 Votes

Help me, I cannot continue the lesson in C# Intermediate.

2nd Jun 2017, 6:25 AM

DoubleVermine

c#code operator-overloading

0 Votes

Why we cannot use voide at place of int in c++language

12th Feb 2024, 11:06 AM

YuukiC (INACTIVE)

c++in void

0 Votes

11 Answers

13th Jan 2018, 5:12 PM

ratnaprabha purandare

I used my only hint and cannot move on

constants swift variables

1 Vote

4 Answers

2nd May 2017, 4:38 AM

kiara

Is there a VIRUS that cannot be removed by any antivirus?

antivirus code help java program programmer python sololearn virus

2 Votes

I cannot understand what is <input type = " password"> what is mean by type

29th Apr 2018, 10:05 AM

Fredkishala

forms

-1 Vote

16 Answers

13th Sep 2021, 3:25 PM

Yogesh Waran

Why is it that most Java code cannot run on this platform

I cannot view my old challenges, is it normal? Did the SoloLearn app erase it automatically?

1 Vote

9 Answers

17th Dec 2019, 9:46 AM

Nweke Godswill

challenge

26 Votes

8 Answers

20th May 2019, 9:16 AM

MCGAmedCoder gamerArtist

Uncaught TypeError: Cannot read property 'style' of null Line 33

animation javascript js

2 Votes

Non-static variable cannot be referenced from a static context

14th Nov 2020, 4:34 PM

Aravind-R-C 06

java static

1 Vote

Why we cannot use stdio.h in c++ language?

15th Oct 2019, 3:39 PM

Sanzid Sadman

c++

0 Votes

I cannot make something which looks good.

15th Jan 2017, 7:21 PM

sanju jaiswal

-2 Votes

Why I cannot make quiz for html?

18th Mar 2017, 7:16 AM

Sanjay Singh

c html html5 quiz

0 Votes

Why assignment operator cannot be overloaded as a friend function?

29th Apr 2020, 2:57 AM

Hashim Muneeb

aniket

2 Votes

cannot declare parameter "attacker" to be of abstract type "Mob" I need help

15th May 2017, 5:58 AM

Ruchi sinha

c++class methods oop

3 Votes

I cannot access the Pro exercises after each lesson

24th Apr 2019, 2:07 AM

ScriptingEngine

pro

0 Votes

SQL: Query the list of CITY names starting with vowels (a, e, I, o, u) from STATION. Your result cannot contain duplicates.?

31st Aug 2024, 1:31 PM

enriksanchez13

functions mysql sql

4 Votes

46 Answers

20th Dec 2016, 6:55 PM

Aakash Yadav

String cannot be converted to Char, but I never tried to

arraylist arrays char compiler java string

0 Votes

Why LOCAL VARIABLES cannot be STATIC in Java ??

5th Nov 2021, 12:28 PM

Billy Beagle

3 Votes

Game Repo: 18.2 - cannot read property of null, reading getContext.

23rd Dec 2016, 7:24 PM

Jenny Lance

codeplayground error help

0 Votes

Which of the following cannot be checked in a switch-case statement?

13th Mar 2022, 2:00 AM

Devon Silverfox-Patchett

4 Votes

"An external JavaScript cannot contain script tag" what does it mean?

20th Jan 2019, 2:49 PM

Zhenis Otarbay

javascript

2 Votes

4 Answers

19th Feb 2019, 5:40 AM

Kunal Acharya

Why constructor cannot be declared as final in java.

3 Votes

I cannot Understand the path making in SVG?

18th Jul 2017, 3:54 PM

Wasim Akhter

html

1 Vote

cannot enter values. touching does not call keyboard

15th Sep 2017, 1:32 PM

Irwin Lopez

functions javascript keyboard

1 Vote

Hi,I cannot understand ,why the sum is incorrect ? please answer me.

28th Sep 2016, 11:48 AM

Jorge Nunes

c language

0 Votes

Uncaught TypeError: Cannot set property 'onmousemove' of null

11th Dec 2020, 5:25 PM

Rami Joy

error javascript js

0 Votes

They say that inline level elements cannot contain block level elements.

27th Sep 2020, 11:34 AM

Rishbabh Sharma

block-level html online-level

9 Votes

Why this loop code is wrong and cannot print？

23rd Mar 2017, 10:50 PM

Wilson Bol

loops

0 Votes

Why constructors cannot be abstract or static or final?

12th Dec 2021, 7:13 AM

Charlie Tseng

1 Vote

My code cannot execute else condition. How do I correct it?

3rd Jan 2019, 8:29 AM

Nitin Gutte

4 Votes

Code is showing error that cannot find symbol String [] z

21st Mar 2022, 4:38 PM

Egor Tonchev(EGO)

1 Vote

I cannot do the 2nd question of string in python

16th May 2020, 6:20 AM

Shivam Rawal

python strings

-3 Votes

Getting Uncaught TypeError: Cannot set property of 'onfocus' of null line: 11

9th Apr 2019, 9:20 AM

Santosh Verma

html5 javascript

0 Votes

8 Answers

19th Aug 2020, 8:57 AM

Pawan

I downloaded python 3.6 and still I cannot import some modules.

0 Votes