# \#linking-error **URL:** https://forums.unrealengine.com/tag/linking-error/7469.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [How to use DrawLines?](https://forums.unrealengine.com/t/how-to-use-drawlines/315549)
**Author:** [@LPLedoux](https://forums.unrealengine.com/u/LPLedoux)\ **Replies:** 6\ **Last updated:** [June 9, 2025, 6:31pm UTC](https://forums.unrealengine.com/t/how-to-use-drawlines/315549 "2025-06-09T18:31:41Z")
Hi ! Currently, I’m trying to draw a lot of lines at runtime using the function DrawLine. However, it starts to get really non-performant as the number of lines go up (which is normal). I then stumbled upon the function… --- ## [UWidgetBlueprintLibrary linking error](https://forums.unrealengine.com/t/uwidgetblueprintlibrary-linking-error/302034)
**Author:** [@undercover](https://forums.unrealengine.com/u/undercover)\ **Replies:** 6\ **Last updated:** [June 28, 2021, 9:11am UTC](https://forums.unrealengine.com/t/uwidgetblueprintlibrary-linking-error/302034 "2021-06-28T09:11:04Z")
Hi! I get a linking error when I try to call UWidgetBlueprintLibrary::SetInputMode\_UIOnly. I have the “UMG”, “Slate” and “SlateCore” modules added in the build file. Is some module missing? Or where can I find all modu… --- ## [An account linking bug](https://forums.unrealengine.com/t/an-account-linking-bug/479148)
**Author:** [@ILiketurtle303](https://forums.unrealengine.com/u/ILiketurtle303)\ **Replies:** 0\ **Last updated:** [February 21, 2021, 6:32am UTC](https://forums.unrealengine.com/t/an-account-linking-bug/479148 "2021-02-21T06:32:41Z")
my friend isnt able to link his xbox account to a epic games account. it is saying (an error as submit during the treatment of youre data at the level of the externe connection systeme please contact assistance) and here… --- ## [Can't inherit from actor in plugin that implements a plugin interface](https://forums.unrealengine.com/t/cant-inherit-from-actor-in-plugin-that-implements-a-plugin-interface/476258)
**Author:** [@name\_tbd](https://forums.unrealengine.com/u/name_tbd)\ **Replies:** 1\ **Last updated:** [December 22, 2020, 5:42pm UTC](https://forums.unrealengine.com/t/cant-inherit-from-actor-in-plugin-that-implements-a-plugin-interface/476258 "2020-12-22T17:42:59Z")
I have a plugin, in which I have defined two types. The first one is a simple actor extending APlayerController UCLASS() class NETPRIVELEGES\_API APrivelegedPlayerController : public APlayerController { GENERATED\_BODY… --- ## [Linker error compile Editor module](https://forums.unrealengine.com/t/linker-error-compile-editor-module/450687)
**Author:** [@anonymous\_user\_5df73663](https://forums.unrealengine.com/u/anonymous_user_5df73663)\ **Replies:** 0\ **Last updated:** [June 14, 2019, 6:37pm UTC](https://forums.unrealengine.com/t/linker-error-compile-editor-module/450687 "2019-06-14T18:37:53Z")
Hi, we are having problems building our project in the Editor. Building standalone (through VS) works, and we have isolated the error to building ProgEditor. Prog by itself works fine. I believe the problem to be caused… --- ## [\[Solved\] CollisionConversions unresolved symbols](https://forums.unrealengine.com/t/solved-collisionconversions-unresolved-symbols/438480)
**Author:** [@anonymous\_user\_13399bb2](https://forums.unrealengine.com/u/anonymous_user_13399bb2)\ **Replies:** 2\ **Last updated:** [November 28, 2018, 11:19pm UTC](https://forums.unrealengine.com/t/solved-collisionconversions-unresolved-symbols/438480 "2018-11-28T23:19:50Z")
I am getting an unresolved external symbols linking error to some of the functions in CollisionConversions which I am using in my code. CollisionConversions lives in: Engine/Private/Collisions My understanding was that I… --- ## [Cannot link my pc to my fortnite game on my xbox](https://forums.unrealengine.com/t/cannot-link-my-pc-to-my-fortnite-game-on-my-xbox/426385)
**Author:** [@jeffy2968](https://forums.unrealengine.com/u/jeffy2968)\ **Replies:** 1\ **Last updated:** [May 31, 2018, 11:04pm UTC](https://forums.unrealengine.com/t/cannot-link-my-pc-to-my-fortnite-game-on-my-xbox/426385 "2018-05-31T23:04:54Z")
I cannot link my pc to my fortnite game on xbox. I clicked on “connect”, signed into my microsoft live account successfully and received an email and notification that it has linked successfully but when I go into the ga… --- ## [Fatal error LNK1120 and LNK2019](https://forums.unrealengine.com/t/fatal-error-lnk1120-and-lnk2019/422515)
**Author:** [@Ricardolo](https://forums.unrealengine.com/u/Ricardolo)\ **Replies:** 0\ **Last updated:** [April 13, 2018, 9:10am UTC](https://forums.unrealengine.com/t/fatal-error-lnk1120-and-lnk2019/422515 "2018-04-13T09:10:16Z")
I have the errors LNK2019 and LNK1120 when I build my cpp.(Include a thirdpaty)I don’t know how to fix these errors and hope, that someone can help me. HalfEdge.h // Fill out your copyright notice in the Description pa… --- ## [Packaging using command line linking problem](https://forums.unrealengine.com/t/packaging-using-command-line-linking-problem/396393)
**Author:** [@kirdaybov](https://forums.unrealengine.com/u/kirdaybov)\ **Replies:** 0\ **Last updated:** [June 20, 2017, 9:16am UTC](https://forums.unrealengine.com/t/packaging-using-command-line-linking-problem/396393 "2017-06-20T09:16:39Z")
We are building our game nightly using GitHub version of the engine (4.13) like this: RunUAT BuildCookRun -project=D:\\Project\\Project.uproject -build -noP4 -platform=Win64 -clientconfig=Test -serverconfig=Test -cook -Co… --- ## [Linking errors after upgrading UE4 version](https://forums.unrealengine.com/t/linking-errors-after-upgrading-ue4-version/314557)
**Author:** [@Muanh\_1](https://forums.unrealengine.com/u/Muanh_1)\ **Replies:** 3\ **Last updated:** [June 20, 2017, 2:37am UTC](https://forums.unrealengine.com/t/linking-errors-after-upgrading-ue4-version/314557 "2017-06-20T02:37:04Z")
Hi, I just upgraded my project from version 4.5.1 to 4.7.5 and after that i get linking errors. All errors are related to FJsonValue class. I posted a list of the errors below. Any help or insight you can offer would be… --- ## [Unresolved external symbol FSpriteDrawCallRecord::BuildFromSprite(class UPaperSprite const \*)](https://forums.unrealengine.com/t/unresolved-external-symbol-fspritedrawcallrecord-buildfromsprite-class-upapersprite-const/354182)
**Author:** [@grisevg](https://forums.unrealengine.com/u/grisevg)\ **Replies:** 1\ **Last updated:** [January 10, 2017, 10:05am UTC](https://forums.unrealengine.com/t/unresolved-external-symbol-fspritedrawcallrecord-buildfromsprite-class-upapersprite-const/354182 "2017-01-10T10:05:41Z")
UE 4.11.1, Windows, Source version. This code causes a linking error FSpriteDrawCallRecord DrawCall; DrawCall.BuildFromSprite(SpriteToSend); And yes, I do have Paper2D in the module dependencies. All other Paper2D st… --- ## [Link error when extending from APostProcessVolume class](https://forums.unrealengine.com/t/link-error-when-extending-from-apostprocessvolume-class/299954)
**Author:** [@UDGMohammed](https://forums.unrealengine.com/u/UDGMohammed)\ **Replies:** 10\ **Last updated:** [July 19, 2016, 7:34pm UTC](https://forums.unrealengine.com/t/link-error-when-extending-from-apostprocessvolume-class/299954 "2016-07-19T19:34:38Z")
Hello, I auto generate a class that inherits from APostProcessVolume I get the following link errors on Visual Studio: 1\>MyPostProcessVolume.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void \_\_c… --- ## [\[Mac\] Linking problem with official 4.10 binary](https://forums.unrealengine.com/t/mac-linking-problem-with-official-4-10-binary/340175)
**Author:** [@DrHobo](https://forums.unrealengine.com/u/DrHobo)\ **Replies:** 5\ **Last updated:** [December 11, 2015, 3:19am UTC](https://forums.unrealengine.com/t/mac-linking-problem-with-official-4-10-binary/340175 "2015-12-11T03:19:35Z")
We’re are trying to migrate from 4.8 to 4.10. We downloaded the official 4.10 from the official launcher, made a copie of the project to another folder, cleaned it up, right-clicked on the .uproject and switched engine … --- ## [Trouble compiling UE4Engine for Android](https://forums.unrealengine.com/t/trouble-compiling-ue4engine-for-android/337953)
**Author:** [@anonymous\_user\_5a1a08f0](https://forums.unrealengine.com/u/anonymous_user_5a1a08f0)\ **Replies:** 1\ **Last updated:** [November 10, 2015, 7:51pm UTC](https://forums.unrealengine.com/t/trouble-compiling-ue4engine-for-android/337953 "2015-11-10T19:51:39Z")
Hi, I am trying to compile the latest release (4.10-preview3) for the Android platform. Everything compiles correctly but fails at link time. It can’t link the android versions of the various third-party libraries. I … --- ## [Fatal Error when trying to compile (Linking Error LNK1104)](https://forums.unrealengine.com/t/fatal-error-when-trying-to-compile-linking-error-lnk1104/332399)
**Author:** [@Pseudocorpus](https://forums.unrealengine.com/u/Pseudocorpus)\ **Replies:** 8\ **Last updated:** [October 12, 2015, 3:20pm UTC](https://forums.unrealengine.com/t/fatal-error-when-trying-to-compile-linking-error-lnk1104/332399 "2015-10-12T15:20:16Z")
At the moment I am receiving this error: Error LNK1104 cannot open file ‘C:\\Users\\brain\\Documents\\Unreal Projects\\StruggleOfMages\\Intermediate\\Build\\Win64\\StruggleOfMages\\Development\\UE4Editor-StruggleOfMages.dll.res… --- ## [link error: LinkGraphNodesFromMaterial unresolved external symbol](https://forums.unrealengine.com/t/link-error-linkgraphnodesfrommaterial-unresolved-external-symbol/327481)
**Author:** [@MilosBulatF](https://forums.unrealengine.com/u/MilosBulatF)\ **Replies:** 4\ **Last updated:** [August 28, 2015, 9:11am UTC](https://forums.unrealengine.com/t/link-error-linkgraphnodesfrommaterial-unresolved-external-symbol/327481 "2015-08-28T09:11:19Z")
Hi, I need the function LinkGraphNodesFromMaterial to update a graph in my plugin. However, during build, it reports: error LNK2019: unresolved external symbol “public: void \_\_cdecl UMaterialGraph::LinkGraphNodesFromMa… --- ## [Getting linking error when I used a certain method from within Unreal 4 engine source code](https://forums.unrealengine.com/t/getting-linking-error-when-i-used-a-certain-method-from-within-unreal-4-engine-source-code/325392)
**Author:** [@anonymous\_user\_0d53d466](https://forums.unrealengine.com/u/anonymous_user_0d53d466)\ **Replies:** 10\ **Last updated:** [July 17, 2015, 6:27pm UTC](https://forums.unrealengine.com/t/getting-linking-error-when-i-used-a-certain-method-from-within-unreal-4-engine-source-code/325392 "2015-07-17T18:27:07Z")
25\>Module.UFileImporter.cpp.obj : error LNK2019: unresolved external symbol “public: void \_\_cdecl FMaterialUniformExpressionTexture::SetTransientOverrideTextureValue(class UTexture \*)” (?SetTransientOverrideTextureValue@… --- ## [UMG blueprint unresolved compile error when i run my game](https://forums.unrealengine.com/t/umg-blueprint-unresolved-compile-error-when-i-run-my-game/321419)
**Author:** [@xlar8or](https://forums.unrealengine.com/u/xlar8or)\ **Replies:** 0\ **Last updated:** [June 11, 2015, 3:07pm UTC](https://forums.unrealengine.com/t/umg-blueprint-unresolved-compile-error-when-i-run-my-game/321419 "2015-06-11T15:07:38Z")
Hello, i’ve upgraded today to 4.8 and every time i run the editor with my project i get unresolved compile error on some UMG widgets i use to draw the slots of my inventory. If i go to the slot parent class, it has the g… --- ## [I am trying to compile UE4 on linux](https://forums.unrealengine.com/t/i-am-trying-to-compile-ue4-on-linux/320914)
**Author:** [@FireFrog](https://forums.unrealengine.com/u/FireFrog)\ **Replies:** 3\ **Last updated:** [June 8, 2015, 6:25pm UTC](https://forums.unrealengine.com/t/i-am-trying-to-compile-ue4-on-linux/320914 "2015-06-08T18:25:35Z")
I am trying to compile UE4 on linux. the ./Setup.sh and GenerateProjectFile.sh phase went well. The real trouble starts when trying to compile/ make SlateViewer. the error i get is as follows: \[35/35\] Link SlateViewer … --- ## [LNK2019 errors when using Socket.IO classes.](https://forums.unrealengine.com/t/lnk2019-errors-when-using-socket-io-classes/317893)
**Author:** [@JRavilo\_1](https://forums.unrealengine.com/u/JRavilo_1)\ **Replies:** 6\ **Last updated:** [May 12, 2015, 7:30am UTC](https://forums.unrealengine.com/t/lnk2019-errors-when-using-socket-io-classes/317893 "2015-05-12T07:30:21Z")
So I’m attempting to link Socket.IO C++ Client to UE for connection purposes. I’m trying to follow these two setup guides GitHub - socketio/socket.io-client-cpp: C++11 implementation of Socket.IO client (for socket.io) a… --- ## [Error in anim BP after moving asset](https://forums.unrealengine.com/t/error-in-anim-bp-after-moving-asset/314802)
**Author:** [@anonymous\_user\_908c4e73](https://forums.unrealengine.com/u/anonymous_user_908c4e73)\ **Replies:** 2\ **Last updated:** [April 21, 2015, 3:38pm UTC](https://forums.unrealengine.com/t/error-in-anim-bp-after-moving-asset/314802 "2015-04-21T15:38:23Z")
When you have a character with an animation blueprint linked to a , and you move this latest to another directory (and fix up the redirectors), you get the following error while opening the anim BP: “Could not find the … --- ## [If the UE4 project builder completes, does that mean that everything worked out?](https://forums.unrealengine.com/t/if-the-ue4-project-builder-completes-does-that-mean-that-everything-worked-out/305754)
**Author:** [@NoobsDeSroobs](https://forums.unrealengine.com/u/NoobsDeSroobs)\ **Replies:** 1\ **Last updated:** [February 2, 2015, 7:14pm UTC](https://forums.unrealengine.com/t/if-the-ue4-project-builder-completes-does-that-mean-that-everything-worked-out/305754 "2015-02-02T19:14:47Z")
I posted a reddit post about the same problem, but I am unsure whether I wrote my build.cs code correctly or not. It went fine until the linker stage, but I get linker errors even though I specified that UE4 needed to in… --- ## [GitHub Student Account Linking Difficulties](https://forums.unrealengine.com/t/github-student-account-linking-difficulties/295945)
**Author:** [@coolasbluefire\_1](https://forums.unrealengine.com/u/coolasbluefire_1)\ **Replies:** 2\ **Last updated:** [October 13, 2014, 3:47pm UTC](https://forums.unrealengine.com/t/github-student-account-linking-difficulties/295945 "2014-10-13T15:47:10Z")
As requested by the admins I am beginning a new thread to describe the problems I am encountering while trying to link my GitHub and Unreal accounts. The first time I tried to post this the message board errored out so …