open failed: EPERM (Operation not permitted)

open failed: EPERM (Operation not permitted)错误是由于Android 10及更高版本引入了沙盒机制所导致的。这意味着应用程序不能直接访问/sdcard目录下的文件，而是只能保存到应用程序专属的目录下。在AndroidManifest.xml文件中，可以通过在<application>标签下添加属性【android:requestLegacyExternalStorage="true"】来暂时允许应用程序访问/sdcard路径下的文件。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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