okular动画播放问题

1. 安装okular

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sudo dnf install  okular

2.手动更新okular为最新版本

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sudo dnf install \
https://kojipkgs.fedoraproject.org//packages/okular/18.04.3/1.fc28/x86_64/okular-18.04.3-1.fc28.x86_64.rpm \
https://kojipkgs.fedoraproject.org//packages/okular/18.04.3/1.fc28/x86_64/okular-devel-18.04.3-1.fc28.x86_64.rpm \
https://kojipkgs.fedoraproject.org//packages/okular/18.04.3/1.fc28/x86_64/okular-libs-18.04.3-1.fc28.x86_64.rpm