Visual Studio App Deploy Error: DEP0700: Registration of the app failed. [0x80073CFB]


You receive the following Visual Studio error when attempting to deploy a UWP application.

Error DEP0700: Registration of the app failed. [0x80073CFB] Another user has already installed an unpackaged version of this app. The current user cannot replace this with a packaged version. The conflicting package is 88D96A69-2E7E-4358-A75D-97B980372496 and it was published by CN=[USERNAME]. [APPNAME]


First we need to verify installations of the App using PowerShell:

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.PS C:\Windows\system32> get-appxpackage -name 88D96A69-2E7E-4358-A75D-97B980372496 -AllUsers

Name : 88D96A69-2E7E-4358-A75D-97B980372496
Publisher : CN=[USERNAME]
Architecture : X64
ResourceId :
Version :
PackageFullName : 88D96A69-2E7E-4358-A75D-97B980372496_1.0.0.0_x64__sck028q6wj2n4
InstallLocation : [PATH]\AppX
IsFramework : False
PackageFamilyName : 88D96A69-2E7E-4358-A75D-97B980372496_sck028q6wj2n4
PublisherId : sck028q6wj2n4
PackageUserInformation : {S-1-5-18 [S-1-5-18]: Staged}
IsResourcePackage : False
IsBundle : False
IsDevelopmentMode : True
IsPartiallyStaged : False
SignatureKind : None
Status : Ok

Remove the Application

remove-appxpackage -package 88D96A69-2E7E-4358-A75D-97B980372496_1.0.0.0_x64__sck028q6wj2n4

You and now try to deploy the Application

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