# \#print-string **URL:** https://forums.unrealengine.com/tag/print-string/2014.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [UE5.6：日志打印嵌套 TMap / TSet 时不用再套 JoinBy](https://forums.unrealengine.com/t/ue5-6-tmap-tset-joinby/2833268)
**Author:** [@Woo\_z1](https://forums.unrealengine.com/u/Woo_z1)\ **Replies:** 0\ **Last updated:** [September 22, 2026, 7:46am UTC](https://forums.unrealengine.com/t/ue5-6-tmap-tset-joinby/2833268 "2026-09-22T07:46:55Z")
要打 TMap\ 的日志，以前要套两层 FString::JoinBy： UE\_LOG(LogTemp, Display, TEXT("IdToValues: %s"), \*FString::JoinBy(IdToValues, TEXT(","), \[\](const TPair\\>& Pair) { return FString::Printf(TEXT("… --- ## [Logging nested TMap / TSet in UE C++ without nested JoinBy ](https://forums.unrealengine.com/t/logging-nested-tmap-tset-in-ue-c-without-nested-joinby/2833013)
**Author:** [@Woo\_z1](https://forums.unrealengine.com/u/Woo_z1)\ **Replies:** 0\ **Last updated:** [September 21, 2026, 3:15pm UTC](https://forums.unrealengine.com/t/logging-nested-tmap-tset-in-ue-c-without-nested-joinby/2833013 "2026-09-21T15:15:00Z")
Problem: logging TMap\ is still nested FString::JoinBy. If the value type later changes from TArray to TSet, every lambda signature has to change with it. UE\_LOG(LogTemp, Display, TEXT("IdToValues: %s"), … --- ## [Advanced Logging System - Plugin](https://forums.unrealengine.com/t/advanced-logging-system-plugin/2513455)
**Author:** [@RTerofer](https://forums.unrealengine.com/u/RTerofer)\ **Replies:** 5\ **Last updated:** [August 13, 2026, 5:14pm UTC](https://forums.unrealengine.com/t/advanced-logging-system-plugin/2513455 "2026-08-13T17:14:37Z")
Advanced Logging System Hello Unreal Engine Community. I am excited to finally launch this plugin. If you have any queries related to this plugin, please ask them here. The Advanced Logging System is a complete debuggin… --- ## [Maths Not adding up-Skips Maths completely ](https://forums.unrealengine.com/t/maths-not-adding-up-skips-maths-completely/2669865)
**Author:** [@gamekillz-62](https://forums.unrealengine.com/u/gamekillz-62)\ **Replies:** 1\ **Last updated:** [October 30, 2025, 3:21am UTC](https://forums.unrealengine.com/t/maths-not-adding-up-skips-maths-completely/2669865 "2025-10-30T03:21:49Z")
Hey guys i Have a Very simple math node that Seems to not be working, im not the best at math but am fairly sure this is a bug, so i have this Function called from the press of a button, then it checks if {\*Clicking-T… --- ## [Unreal printing String in Shipping, and also collisions are visible](https://forums.unrealengine.com/t/unreal-printing-string-in-shipping-and-also-collisions-are-visible/715170)
**Author:** [@JoeBox9](https://forums.unrealengine.com/u/JoeBox9)\ **Replies:** 20\ **Last updated:** [April 1, 2025, 6:11am UTC](https://forums.unrealengine.com/t/unreal-printing-string-in-shipping-and-also-collisions-are-visible/715170 "2025-04-01T06:11:01Z")
Hello, I packaged my game for Shipping and it still prints strings and the collisions of some objects that I enabled are visible. this should happen how do I fix this? --- ## [Widget Switcher Index Variable is Different in Different Blueprints When Nothing Else is Changed](https://forums.unrealengine.com/t/widget-switcher-index-variable-is-different-in-different-blueprints-when-nothing-else-is-changed/2109603)
**Author:** [@Maximum.Dino](https://forums.unrealengine.com/u/Maximum.Dino)\ **Replies:** 1\ **Last updated:** [November 8, 2024, 12:30pm UTC](https://forums.unrealengine.com/t/widget-switcher-index-variable-is-different-in-different-blueprints-when-nothing-else-is-changed/2109603 "2024-11-08T12:30:16Z")
Hello! I’ve stumped myself with troubleshooting an issue I’ve been having. I’m trying to use a widget switcher to make my character have different emotions. I’ve set it up in a way that makes sense to me, and theoretical… --- ## [Print String doesn't work after cooking](https://forums.unrealengine.com/t/print-string-doesnt-work-after-cooking/282216)
**Author:** [@its\_MilK](https://forums.unrealengine.com/u/its_MilK)\ **Replies:** 5\ **Last updated:** [August 21, 2024, 10:18am UTC](https://forums.unrealengine.com/t/print-string-doesnt-work-after-cooking/282216 "2024-08-21T10:18:04Z")
I have finished my project level and everything is as I want it, but my Print String events I have set up, are not working. They work when I test the game in editor, but after packaging for windows, they don’t display. I… --- ## [Why does 'Print String' color not show in output log?](https://forums.unrealengine.com/t/why-does-print-string-color-not-show-in-output-log/300896)
**Author:** [@Erdrik](https://forums.unrealengine.com/u/Erdrik)\ **Replies:** 6\ **Last updated:** [August 19, 2024, 2:25pm UTC](https://forums.unrealengine.com/t/why-does-print-string-color-not-show-in-output-log/300896 "2024-08-19T14:25:59Z")
I have recently discovered the wonders of ‘Print String’ as used to place text in the output log! (behind the times, yes I know, anyway…) But no matter what linear color I input into the command it always comes out gre… --- ## [How to prolong a blueprint print message?](https://forums.unrealengine.com/t/how-to-prolong-a-blueprint-print-message/281326)
**Author:** [@joessu](https://forums.unrealengine.com/u/joessu)\ **Replies:** 7\ **Last updated:** [July 26, 2024, 11:24pm UTC](https://forums.unrealengine.com/t/how-to-prolong-a-blueprint-print-message/281326 "2024-07-26T23:24:45Z")
Any ideas? i would like to not have to reprint it and lose ordering, etc. It seems to print for a very very brief amount of time. --- ## [Print String stops working when we toggle on/off AI debug](https://forums.unrealengine.com/t/print-string-stops-working-when-we-toggle-on-off-ai-debug/388647)
**Author:** [@A.SISODIYA](https://forums.unrealengine.com/u/A.SISODIYA)\ **Replies:** 6\ **Last updated:** [July 5, 2024, 2:52pm UTC](https://forums.unrealengine.com/t/print-string-stops-working-when-we-toggle-on-off-ai-debug/388647 "2024-07-05T14:52:55Z")
Steps to recreate Turn on EQS (Experimental ) Make an AI with Perception Component added Add Nav Volume Add AI\_Character to Level Simulate or Play and turn on AI debug Press Esc and again play/ simulate Print string w… --- ## [Print String not working](https://forums.unrealengine.com/t/print-string-not-working/377050)
**Author:** [@Willard720](https://forums.unrealengine.com/u/Willard720)\ **Replies:** 41\ **Last updated:** [June 23, 2024, 10:15pm UTC](https://forums.unrealengine.com/t/print-string-not-working/377050 "2024-06-23T22:15:21Z")
For some reason, the print string nodes are no longer printing to the screen. If I press \` twice I can see the prints by opening the console in the PIE, but the UI for that covers the entire game and its annoying to do i… --- ## [Debug disabling print string](https://forums.unrealengine.com/t/debug-disabling-print-string/384855)
**Author:** [@Ruffhaus](https://forums.unrealengine.com/u/Ruffhaus)\ **Replies:** 10\ **Last updated:** [June 14, 2024, 10:17am UTC](https://forums.unrealengine.com/t/debug-disabling-print-string/384855 "2024-06-14T10:17:23Z")
When enabling debug via the apostrophe key in a PIE session, print string is disabled and when you close debug print string works again. However if you press Escape to close the PIE session with the debug information on… --- ## [AddOnScreenDebugMessage not working in altered engine functions](https://forums.unrealengine.com/t/addonscreendebugmessage-not-working-in-altered-engine-functions/1191580)
**Author:** [@Beyond\_edge](https://forums.unrealengine.com/u/Beyond_edge)\ **Replies:** 0\ **Last updated:** [June 7, 2023, 9:04am UTC](https://forums.unrealengine.com/t/addonscreendebugmessage-not-working-in-altered-engine-functions/1191580 "2023-06-07T09:04:41Z")
Hey I’m playing around with FMapProperty::ImportText\_Internal function to try and figure out how it works. But the problem is when ever I put AddOnScreenDebugMessage in it to see how it executes It doesn’t print to scree… --- ## [On-Screen Debugging Plugin](https://forums.unrealengine.com/t/on-screen-debugging-plugin/832500)
**Author:** [@sonictimm](https://forums.unrealengine.com/u/sonictimm)\ **Replies:** 0\ **Last updated:** [March 29, 2023, 5:03pm UTC](https://forums.unrealengine.com/t/on-screen-debugging-plugin/832500 "2023-03-29T17:03:37Z")
Just released a free On-Screen Debug Tool. Watch Overview and Tutorial (2:14) It’s great for seeing values as they change in real-time: It’s very simple, but it’s so generic that I find myself wanting to use it acro… --- ## [Print string doesn't work](https://forums.unrealengine.com/t/print-string-doesnt-work/328108)
**Author:** [@Marcius123](https://forums.unrealengine.com/u/Marcius123)\ **Replies:** 8\ **Last updated:** [April 16, 2022, 10:39pm UTC](https://forums.unrealengine.com/t/print-string-doesnt-work/328108 "2022-04-16T22:39:22Z")
Hello I can’t print strings, however if i replace print string node with quit game node, game quits. I tried using begin play, i tried different blueprint classes, nothing works. This issue doesn’t appear on a clean… --- ## [How to Debug via C++?](https://forums.unrealengine.com/t/how-to-debug-via-c/293747)
**Author:** [@dezzzus](https://forums.unrealengine.com/u/dezzzus)\ **Replies:** 10\ **Last updated:** [September 21, 2021, 2:47am UTC](https://forums.unrealengine.com/t/how-to-debug-via-c/293747 "2021-09-21T02:47:55Z")
is right but I prefer to call it like this: #if UE\_BUILD\_DEBUG GEngine-\>AddOnScreenDebugMessage(-1, 15.0f, FColor::Red, "debug msg"); #endif the -1 is the key, the 15.0f is how long to display it in seconds, the co… --- ## [Print String for Niagara Script](https://forums.unrealengine.com/t/print-string-for-niagara-script/471562)
**Author:** [@ssjjessy](https://forums.unrealengine.com/u/ssjjessy)\ **Replies:** 1\ **Last updated:** [September 19, 2020, 4:13am UTC](https://forums.unrealengine.com/t/print-string-for-niagara-script/471562 "2020-09-19T04:13:09Z")
I do not know HLSL, and trying to create my own Niagara modules has been very difficult. Niagara scripting is a completely different animal than the blueprint tool! \*\*I feel like it would be very helpful if there was a … --- ## [Print String not showing on Oculus Quest](https://forums.unrealengine.com/t/print-string-not-showing-on-oculus-quest/452029)
**Author:** [@Evil\_Fischi](https://forums.unrealengine.com/u/Evil_Fischi)\ **Replies:** 2\ **Last updated:** [September 3, 2020, 2:35pm UTC](https://forums.unrealengine.com/t/print-string-not-showing-on-oculus-quest/452029 "2020-09-03T14:35:41Z")
Hi there folks, I am currently working on a Oculus Quest project and for debugging I am using multiple “printString” nodes in my blueprints. When I play it in the editor it works, but when I launched the project to the… --- ## [How can i save a Text by a user as a string?](https://forums.unrealengine.com/t/how-can-i-save-a-text-by-a-user-as-a-string/451154)
**Author:** [@Beni13.08](https://forums.unrealengine.com/u/Beni13.08)\ **Replies:** 2\ **Last updated:** [June 24, 2019, 3:11pm UTC](https://forums.unrealengine.com/t/how-can-i-save-a-text-by-a-user-as-a-string/451154 "2019-06-24T15:11:00Z")
Hey, I startet Programming a few days ago with blueprints in Unreal and I was wondering, how can I save a user Imput from the Text Box and store it in a String for later use. And is it possible to print a sentence in wit… --- ## [Default Print String duration](https://forums.unrealengine.com/t/default-print-string-duration/373080)
**Author:** [@aristides](https://forums.unrealengine.com/u/aristides)\ **Replies:** 2\ **Last updated:** [April 26, 2019, 1:24pm UTC](https://forums.unrealengine.com/t/default-print-string-duration/373080 "2019-04-26T13:24:51Z")
Is it possible to change the default duration in Print String nodes (Print String | Unreal Engine Documentation) so I don’t have to increase this number every time I create this node? --- ## [Can things be printed even without instances of print string?](https://forums.unrealengine.com/t/can-things-be-printed-even-without-instances-of-print-string/436151)
**Author:** [@Lazy\_Lifeguard](https://forums.unrealengine.com/u/Lazy_Lifeguard)\ **Replies:** 3\ **Last updated:** [October 23, 2018, 8:23am UTC](https://forums.unrealengine.com/t/can-things-be-printed-even-without-instances-of-print-string/436151 "2018-10-23T08:23:45Z")
For a while my project has continuously printed strings of 0 whenever I enable a specific boolean. Yesterday I realized that those strings did not represent what I thought they did, and even if they DID represent what I’… --- ## [C++ Debug text and Debug lines in construction script](https://forums.unrealengine.com/t/c-debug-text-and-debug-lines-in-construction-script/434427)
**Author:** [@theNewGfactor](https://forums.unrealengine.com/u/theNewGfactor)\ **Replies:** 1\ **Last updated:** [September 25, 2018, 7:36pm UTC](https://forums.unrealengine.com/t/c-debug-text-and-debug-lines-in-construction-script/434427 "2018-09-25T19:36:58Z")
Hello, I’ve just started programming in C++ and can’t figure out how to print debug text on screen and debug lines in world in my C++ construction script (OnConstruction). In blueprints, you can call “Print String” and “… --- ## [Changing Individual Print String names in output log](https://forums.unrealengine.com/t/changing-individual-print-string-names-in-output-log/432712)
**Author:** [@anonymous\_user\_15de4253](https://forums.unrealengine.com/u/anonymous_user_15de4253)\ **Replies:** 1\ **Last updated:** [August 29, 2018, 12:56pm UTC](https://forums.unrealengine.com/t/changing-individual-print-string-names-in-output-log/432712 "2018-08-29T12:56:01Z")
So i have several variables which I am putting into separate print strings. However in the output log they all come out under the same \[Fraser\_FIP\_C\_23\] print. Is there any way to change the names of the print strings so… --- ## [Print debug text to screen from blueprint](https://forums.unrealengine.com/t/print-debug-text-to-screen-from-blueprint/313012)
**Author:** [@Snipe3000](https://forums.unrealengine.com/u/Snipe3000)\ **Replies:** 2\ **Last updated:** [June 16, 2018, 12:29am UTC](https://forums.unrealengine.com/t/print-debug-text-to-screen-from-blueprint/313012 "2018-06-16T00:29:45Z")
How can I print debug text on the screen with out it scrolling text down the side? I have about 15 variables I need to keep track of and it seems only possible to look at one because the text is not printing in place bu… --- ## [Print text notification from any blueprint to UMG](https://forums.unrealengine.com/t/print-text-notification-from-any-blueprint-to-umg/418466)
**Author:** [@ChrisBradwell](https://forums.unrealengine.com/u/ChrisBradwell)\ **Replies:** 1\ **Last updated:** [February 27, 2018, 12:34pm UTC](https://forums.unrealengine.com/t/print-text-notification-from-any-blueprint-to-umg/418466 "2018-02-27T12:34:21Z")
Hi, I’d like to send notifications to umg from any blueprint such as the character blueprint or another widget blueprint to a common widget blueprint that can accept the text in the sending function and display it. In … --- ## [Print Screen font size](https://forums.unrealengine.com/t/print-screen-font-size/410038)
**Author:** [@RumbleMonk](https://forums.unrealengine.com/u/RumbleMonk)\ **Replies:** 6\ **Last updated:** [February 23, 2018, 7:05am UTC](https://forums.unrealengine.com/t/print-screen-font-size/410038 "2018-02-23T07:05:55Z")
Hmm. I would love to know that too (if it exists) my guess would be somewhere under editor settings. I have also thought about it a couple of times but never had been a big issue for me so never bothered. Probably wi… --- ## [PrintString to ProgressBar](https://forums.unrealengine.com/t/printstring-to-progressbar/412690)
**Author:** [@anonymous\_user\_3b84f87d1](https://forums.unrealengine.com/u/anonymous_user_3b84f87d1)\ **Replies:** 19\ **Last updated:** [December 20, 2017, 11:34pm UTC](https://forums.unrealengine.com/t/printstring-to-progressbar/412690 "2017-12-20T23:34:38Z")
Hi, I’m doing a 2d slidescroller and I did a basic score system: when you pick a coin you score 10 when it arrives to score = 100 it resets to 0 and gives you health. Now I can see the values from print strings but I do… --- ## [Why does the Print Screen Appears "client -2"?](https://forums.unrealengine.com/t/why-does-the-print-screen-appears-client-2/403797)
**Author:** [@RyzonPT](https://forums.unrealengine.com/u/RyzonPT)\ **Replies:** 2\ **Last updated:** [December 13, 2017, 8:04pm UTC](https://forums.unrealengine.com/t/why-does-the-print-screen-appears-client-2/403797 "2017-12-13T20:04:29Z")
Hello everyone. Well im working on a multiplayer game and learned a lot of replication stuff but sometimes i still get a litle confused, like now… I made a widget that is created locally on my Character blueprint but f… --- ## [Crash Reproduction hints for UE-51146](https://forums.unrealengine.com/t/crash-reproduction-hints-for-ue-51146/408140)
**Author:** [@anonymous\_user\_18100073](https://forums.unrealengine.com/u/anonymous_user_18100073)\ **Replies:** 8\ **Last updated:** [December 11, 2017, 5:55pm UTC](https://forums.unrealengine.com/t/crash-reproduction-hints-for-ue-51146/408140 "2017-12-11T17:55:39Z")
We hit the crash mentioned in UE-51146 every minute while printing debug text to the screen. I think you can probably reproduce this in any VR project by playing in VR and printing a few lines of debug text every tick.… --- ## [Can you use Print String to print debug messages in VR?](https://forums.unrealengine.com/t/can-you-use-print-string-to-print-debug-messages-in-vr/371901)
**Author:** [@anonymous\_user\_56dbebc1](https://forums.unrealengine.com/u/anonymous_user_56dbebc1)\ **Replies:** 5\ **Last updated:** [November 9, 2017, 7:53am UTC](https://forums.unrealengine.com/t/can-you-use-print-string-to-print-debug-messages-in-vr/371901 "2017-11-09T07:53:23Z")
I’m currently working on debugging issues in a VR project, using the “VR Preview” option a lot. I just ran into an issue that would be easy to solve with Print String in regular PIE previews, but the mesages don’t seem … [Next page](https://forums.unrealengine.com/tag/print-string/2014.md?match_all_tags=true&page=1&tags%5B%5D=print-string)