에러 : Multiple precompiled assemblies with the same name Newtonsoft.Json.dll included on the current platform. Only one assembly with the same name is allowed per platform.

🔷 에러메세지

패키지를 임포트하니 아래의 에러가 생겼다.

 

 

 

🔶 에러메세지 1

Multiple precompiled assemblies with the same name Newtonsoft.Json.dll included on the current platform. Only one assembly with the same name is allowed per platform.

 

 

 

🔶 에러메세지 2

PrecompiledAssemblyException: Multiple precompiled assemblies with the same name Newtonsoft.Json.dll included on the current platform. Only one assembly with the same name is allowed per platform.

 

UnityEditor.Scripting.ScriptCompilation.PrecompiledAssemblyProvider.ValidateAndGetNameToPrecompiledAssembly (UnityEditor.Scripting.ScriptCompilation.PrecompiledAssembly[] precompiledAssemblies) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.Scripting.ScriptCompilation.PrecompiledAssemblyProvider.GetPrecompiledAssembliesDictionary (System.Boolean isEditor, UnityEditor.BuildTargetGroup buildTargetGroup, UnityEditor.BuildTarget buildTarget) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.Compilation.CompilationPipeline.GetScriptAssemblies (UnityEditor.Scripting.ScriptCompilation.IEditorCompilation editorCompilation, UnityEditor.Scripting.ScriptCompilation.EditorScriptCompilationOptions options) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.Compilation.CompilationPipeline.GetScriptAssemblies (UnityEditor.Scripting.ScriptCompilation.IEditorCompilation editorCompilation, UnityEditor.Compilation.AssembliesType assembliesType) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.Compilation.CompilationPipeline.GetAssemblies (UnityEditor.Scripting.ScriptCompilation.EditorCompilation editorCompilation, UnityEditor.Compilation.AssembliesType assembliesType) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) UnityEditor.Compilation.CompilationPipeline.GetAssemblies (UnityEditor.Compilation.AssembliesType assembliesType) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.Compilation.CompilationPipeline.GetAssemblies () (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 

 

VSCodeEditor.AssemblyNameProvider.GetAssemblies (System.Func`2[T,TResult] shouldFileBePartOfSolution) (at Library/PackageCache/com.unity.ide.vscode@1.2.3/Editor/ProjectGeneration/AssemblyNameProvider.cs:47) 

VSCodeEditor.ProjectGeneration.SyncIfNeeded (System.Collections.Generic.List`1[T] affectedFiles, System.String[] reimportedFiles) (at Library/PackageCache/com.unity.ide.vscode@1.2.3/Editor/ProjectGeneration/ProjectGeneration.cs:180) 

VSCodeEditor.VSCodeScriptEditor.SyncIfNeeded (System.String[] addedFiles, System.String[] deletedFiles, System.String[] movedFiles, System.String[] movedFromFiles, System.String[] importedFiles) (at Library/PackageCache/com.unity.ide.vscode@1.2.3/Editor/VSCodeScriptEditor.cs:162) 

 

UnityEditor.CodeEditorProjectSync.PostprocessSyncProject (System.String[] importedAssets, System.String[] addedAssets, System.String[] deletedAssets, System.String[] movedAssets, System.String[] movedFromAssetPaths) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0) 
UnityEditor.AssetPostprocessingInternal.PostprocessAllAssets (System.String[] importedAssets, System.String[] addedAssets, System.String[] deletedAssets, System.String[] movedAssets, System.String[] movedFromPathAssets) (at <5be0ebaa82df43c7b5c1b1db9bde1e97>:0)

 

 

 

🔷 해결방법

Newtonsoft.Json.dll 파일이 여러개라서 발생하는 문제 같았다.

다운받은 패키지 내에 있는 Newtonsoft.Json.dll 파일을 삭제하니 에러가 사라졌다.