Qt 5.1.1：应用程序无法启动，因为平台插件“窗口”不见了 [英] Qt 5.1.1: Application failed to start because platform plugin "windows" is missing

问题描述

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编辑：
有些人开始将我的问题标记为重复。不要忘记，当我问这个问题存在许多类似的问题（见例如下面的列表）。但是，这些答案都没有解决我的问题。在长时间搜索后，我发现注释，所有用户都指向缺少的lib。现在，许多个月后，评论已经改为答案。但是，当我回答这个问题由msyself我打算通过直接提供解决方案来帮助其他人。这不应该被忘记，到目前为止我的答案帮助了很多人。因此我的问题绝对不是重复的。 顺便说一下：在顶部提供的链接中接受的答案无法解决问题

。

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是，我使用了搜索：

无法加载平台插件窗口。可用的平台包括：错误

从Visual Studio中部署Qt C ++应用程序qwindows.dll错误

无法加载平台插件窗口可用的平台是：windows，最少

但是，在我的情况下，问题仍然存在。我使用Qt 5.1.1与Visual Studio 2012和开发我的应用程序在Windows 7与Qt Creator 2.8.1。

但是，从release-Folder开始，我得到了以下消息：

此应用程序无法启动，因为无法找到或加载
Qt平台插件windows。可用的平台插件包括：
minimal，offscreen，windows。

文件夹结构如下：

  release 
 + gui.exe 
 + icudt51.dll 
 + icuin51.dll 
 + icuuc51。 dll 
 + libGLESv2.dll 
 + Qt5Core.dll 
 + Qt5Gui.dll 
 + Qt5Widgets.dll 
 + platforms 
  
 
 
 
平台是直接从 Qt \ Qt5.1.1 \5.1.1\ msvc2012 \plugins\platforms <强>包括例如qwindows.dll。如果我将其重命名为平台作为一些其他用户没有关系。 Qt仍然没有找到平台插件窗口，我的错误在哪里？
解决方案
 =http://stackoverflow.com/a/17271172/1458552> http://stackoverflow.com/a/17271172/1458552 其他用户不太注意：
 
 
 
  libEGL.dll 丢失了！即使这没有报告，当试图启动应用程序（所有其他* .dlls如Qt5Gui.dll已被报告）。
 


Edit:
Some people started to mark my question as a duplicate. Do not forget that many similar questions existed when I asked this one (see e.g. the list below). However, none of these answers solved my problem. After a long search I found a comment which had been ignored by all users pointing to the missing lib. Now, many months later, the comment has been changed to an answer. However, when I answered this question by msyself I intended to help other people by directly providing the solution. This should not be forgotten and so far my answer helped a lot of people. Therefore my question is definitely not a duplicate.  By the way: The accepted answer within the provided link on top does not solve the problem!



Yes, i used the search:

Failed to load platform plugin "windows". Available platforms are : Error

Deploying Qt C++ Application from Visual Studio qwindows.dll error

failed to load platform plugin "windows" Available platforms are: windows, minimal

However, in my case the problem still persists. I am using Qt 5.1.1 with Visual Studio 2012 and developed my Application on Windows 7 with Qt Creator 2.8.1. Application is compiled in "Release"-mode and can be executed if directly started with Qt Creator.

However, when starting from the "release"-Folder, i get the following message:

  
This application failed to start because it could not find or load the
  Qt platform plugin "windows".  Available platform plugins are:
  minimal, offscreen, windows.
Folder structure looks like this:
release
+ gui.exe
+ icudt51.dll
+ icuin51.dll
+ icuuc51.dll
+ libGLESv2.dll
+ Qt5Core.dll
+ Qt5Gui.dll
+ Qt5Widgets.dll
+ platforms
Platforms is the folder directly copied from Qt\Qt5.1.1\5.1.1\msvc2012\plugins\platforms including e.g. qwindows.dll. Does not matter if I rename it to "platform" as some other users did. Qt is still not finding the "platform plugin windows", where is my mistake?
解决方案
Okay, as posted here http://stackoverflow.com/a/17271172/1458552 without much attention by other users: 

The libEGL.dll was missing! Even though this has not been reported when trying to start the application (all other *.dlls such as Qt5Gui.dll had been reported).

                        
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