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Acces None Trying To Read Property

alt textHello Guys I Wanna Get Variable From Widget In Blueprint Level But I Took This Message. How Can I Solve It ? I Cant Take Any Variable From Widget :/

alt text

Product Version: UE 4.20
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asked Sep 06 '18 at 11:25 PM in Blueprint Scripting

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Zabuza Senpai
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avatar image ThompsonN13 Sep 07 '18 at 12:31 AM

your widget probably doesnt exist when your trying to get the variable .

avatar image Zabuza Senpai Sep 07 '18 at 12:49 AM

Yeah I Know But, I Tried With IsValid? Same Problem...

avatar image JoSilver Sep 07 '18 at 01:48 AM

How exactly are you setting Password Screen, it's possible the widget has not been created yet at the time you set Password Screen.

avatar image CKong Sep 07 '18 at 03:08 AM

Either it haven't been created, or it been created but haven't been assigned to that variable he is referring to.

avatar image Zabuza Senpai Sep 07 '18 at 08:31 PM

What Should I Do ?

avatar image CKong Sep 07 '18 at 09:49 PM

Show us the blueprint that you used to create password screen widget

avatar image Zabuza Senpai Sep 11 '18 at 03:21 PM

look my new answer mate :/

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![alt text][3] alt text alt text When I Came to box collesion blueprint run keypad custom event, when password screen add to viewport, i wanna print "strr" variable, pass variable is password screen reference. please help me guys... edit : only show "!!!!!!!!!" and when return editor i got executeubergraph error please help (I'm sorry for my english.)

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answered Sep 11 '18 at 03:20 PM

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Zabuza Senpai
1 1 3

avatar image Zabuza Senpai Sep 11 '18 at 11:18 PM

Can Somebody Help Me Please I Just Wanna Take Variable From Widget to my Blueprint...

avatar image Hyrex93 Sep 12 '18 at 11:37 AM

Variable "Pass" was a null pointer. Had you set "pass" somewhere? (There is no set in all the screenshot provided)

Or even better, is it okay to provide the blueprint/project for people looking into it? The screenshot only helps a little.

avatar image Zabuza Senpai Sep 12 '18 at 04:36 PM

I Had not set "Pass" I Just Only Create Variable "Pass" And This Is Widget Referance.

avatar image Hyrex93 Sep 12 '18 at 05:55 PM

That is why your PIE produced errors. Creating a widget reference without assigned value and calling a function/deref a variable from it is not going to be processed.

I do have few concerns regard the design of using widget in this way. A desirable flow process should be:

  1. Spawn widget once in GameMode/GameState, then defaulted to Hidden.

  2. On Box Collision, turn this widget to Visible as it needs mouse-keyboard interaction. You may pause the game but do not pause input.

  3. Type in whatever value in the text field. Once lose focus on the text field, press any button to print the content of the text field.

Right now the issue is:

  1. Widget being spawned multiple time, I had no idea which one is the "newest" one. Not to mention one may overlap on top another...I didn't see any RemoveFromParent() node being called.

  2. You have an extra variable, "pass" flying around in the event call, but it has never been set. There should be a variable call "keyboard..." which you partially erased it (Personal opinions: if your variable is not okay for the public to see, rename it and clean your blueprint.). Calling strrr from it should be okay if you have a default value. However, it will not be user entered context.

  3. It is quite hard for me to actually figure it out if no blueprints source provided. This is all based assumption, which may not help.

avatar image Zabuza Senpai Sep 12 '18 at 06:54 PM

Okay I Upload It Once Again, My Issue Is When I Came Box Collesion I Wanna See Variable From Widget I Uploaded It. When You Fix It, Can You Explain To Me Please ? Thanks. Link : Download

avatar image Zabuza Senpai Sep 14 '18 at 12:06 PM

Somebody Can Help Me Please ?!

avatar image Hyrex93 Sep 14 '18 at 05:25 PM

If possible upload it to a reliable site, such as Dropbox.

The website you has this "click me to download and agree to install something" shenanigans or pop-ups.

I do not wanna risk my PC for this link. Sorry.

avatar image Zabuza Senpai Sep 14 '18 at 07:50 PM

Oh,I Got It : Dropbox

avatar image Zabuza Senpai 5 days ago

Is That Okay Bro ?

avatar image Zabuza Senpai 20 hours ago

Bro ??????

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