Crash when open the about windows in menu about dtkcore

[deepin-CD]

1. According to your quantitative information, it is recommended to compile dtk before compiling the application
2. After compressing the last information, it is found that it has nothing to do with the theater and is related to the music player.

[hillwoodroc]

The direct reason is in dtkcore. In

dtkcore/src/dsysinfo.cpp

Line 105 in e7e7a99

QFile file("/etc/deepin-version");

, the about window forcely reads /etc/deepin-version through dtkcore. If the file is not provided by system, deepin-movie crashed after openning the about windows. I don't understand why all deepin apps must call this feature. About windows of many deepin apps actually don't use any information in /etc/deepin-version. This bug can reproduce on deepin-music, deepin-editor, deepin-calendar and deepin-system-monitor.

[hillwoodroc]

So, could tell me which item is read from /etc/deepin-version?

[deepin-CD]

应该算是一个bug（在非uos上会出现）， uos是会带这个文件的， 这个文件以前是用来判断系统发行版本，但是在这个ensureDeepinInfo最后初始化了distributionInfo指针， 如果/etc/deepin-version不存在那么不会被初始化也就是空指针， 这个崩溃就是访问了空指针导致的。 临时解决办法是自己创建一个 /etc/deepin-version。 或者等 dtkcore更新也是可以的。

[deepin-CD]

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