Question

我正在开发一个使用libjahspotify的应用程序。该程序在我的桌面（Windows 7）上运行，尝试在我的笔记本电脑（Windows 8.1）或我的其他英特尔NUC（Windows 7）上运行时出现以下错误：

Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\temp\jahspotify.dll: Can't find dependent libraries
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1929)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1814)
    at java.lang.Runtime.load0(Runtime.java:809)
    at java.lang.System.load(System.java:1083)
    at jahspotify.JahSpotifyNativeLoader.<init>(JahSpotifyNativeLoader.java:90)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
    at java.lang.Class.newInstance(Class.java:438)
    at jahspotify.impl.JahSpotifyImpl.<clinit>(JahSpotifyImpl.java:730)
    at jahspotify.services.JahSpotifyService.initialize(JahSpotifyService.java:56)
    at jahspotify.services.JahSpotifyService.getInstance(JahSpotifyService.java:26)
    at jahspotify.services.JahSpotifyService.initialize(JahSpotifyService.java:39)
    at net.functionseven.divicantus.spotify.Spotify.init(Spotify.java:29)
    at net.functionseven.divicantus.Divicantus.main(Divicantus.java:20)

libjahspotify中的native-jar应该自动加载dll，但不会。此时似乎没有加载jahspotify.dll。如果我手动将jahspotify.dll复制到文件夹，native-jar将删除它，就像它应该的那样。

我已多次重新编译libjahspotify，并多次检查java和dll都是x86。我还试图用System.load（）手动加载它，我得到类似的错误，如下所示。

Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: C:\temp\jahspotify.dll
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1817)
    at java.lang.Runtime.load0(Runtime.java:809)
    at java.lang.System.load(System.java:1083)
    at net.functionseven.divicantus.Divicantus.main(Divicantus.java:24)

我对正在发生的事情感到茫然。

Answer 1

最可能的原因是第二个系统缺少jahspotify.dll所需的一些dll。您可以使用Dependency Walker（http://www.dependencywalker.com/）检查哪些dll是必需的，并尝试将它们与jahspotify.dll一起手动放置。通常缺少的DLL来自c ++可再发行包等。

无法在其他系统上加载本机库

1 个答案: