Qt程序没有文本，我没有字体错误 [英] Qt program have no text and i haven't font error
问题描述
很抱歉，如果我的英语不是很完美，但是我的母语是法语。
sorry if my english isn't perfect but my first language is french.
我的问题是我的窗口上有一个针对raspbian的交叉编译器，我终于做到了，但是当我在pi上执行程序时，窗口上的小部件没有文本，并且我没有关闭按钮。有人给了我一个可以在他的树莓派上完美工作的代码，我得到了相同的结果。使用这两种代码，结果是相同的：只是在基本窗口上写有测试按钮。所以我知道我的问题不是我的交叉编译器，而是我的pi。我尝试卸载qt5-default软件包，重新安装并升级所有软件包，但没有效果。我尝试使用此命令-./myprogram -platform linuxfb运行linuxfb插件，但是我遇到了图形错误...请看这张图片。
My problem is I have a cross-compiler on my window for raspbian and i finally did it, but when i execute the program on my pi the widget on window has no text and i don't have a close button. Someone gave me a code that works perfectly on his raspberry pi and i have the same result. With both codes it's the same result: just the basic window with a push button "test" written over it. So I know that my issue isn't my cross compiler but is on my pi. I tried to uninstall qt5-default package,reinstall it and upgrade all packages, but isn't effective. i tried to run linuxfb plugin with this command -./myprogram -platform linuxfb but i have the graphical bug... take a look at this picture.
我还发布在 Qt论坛，但是回复时间很慢。我试图找到问题已经过去了三个星期。如果有人可以为这个问题提供解决方案或想法，我会提出任何建议。
I have also posted on Qt forum, but the reply time is very slow. it'll have been three weeks that i tried to find the issue. if anyone can provide a solution or an idea for this problem i will take any suggestions.
感谢阅读此消息。
Kuba Ober给了我一个解决方案，解决了它需要重新安装microsd一个qt5的树莓img，它的工作！但是我不知道什么是确切的问题，但是此解决方案有效。
Kuba Ober gave me a solution to solved it take a another microsd reinstall a raspbian img with qt5 and it's work!!! but what is exactly the issue i don't know but this solution work.
推荐答案
我知道我的问题不是我的交叉编译器，而是我的pi
I know that my issue isn't my cross compiler but is on my pi
这不太可能-很容易检查：下载新的Raspbian映像
That's unlikely - it's easy to check: download a fresh Raspbian image to an SD card, boot it up, and try your code out.
您忘记了更可能的原因：您可能已经构建了Qt的非功能齐全的副本。我敢打赌它不能在任何人的Raspberry Pi上使用，包括您朋友的Raspberry Pi。
You forgot the more likely reason: you probably have built a non-fully-functional copy of Qt. I bet it won't work on anyone's Raspberry Pi, including your friend's.
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