Copier un fichier excel

Bonjour,

Voilà j'essaie de copier un fichier excel, cela marche correctement avec mon premier fichier, mais lorsque je veux copier mon second fichier excel, cette fois ci j'obtiens une erreur :

Code:

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W/System.err: java.lang.StringIndexOutOfBoundsException: length=0; index=1
 W/System.err:     at jxl.biff.EncodedURLHelper.getFile(EncodedURLHelper.java:60)
W/System.err:     at jxl.biff.EncodedURLHelper.getEncodedURL(EncodedURLHelper.java:51)
W/System.err:     at jxl.write.biff.SupbookRecord.initExternal(SupbookRecord.java:203)
W/System.err:     at jxl.write.biff.SupbookRecord.getData(SupbookRecord.java:254)
W/System.err:     at jxl.biff.WritableRecordData.getBytes(WritableRecordData.java:71)
W/System.err:     at jxl.write.biff.File.write(File.java:147)
W/System.err:     at jxl.write.biff.WritableWorkbookImpl.write(WritableWorkbookImpl.java:913)
W/System.err:     at com.mycoprod.akhetib.mycoprod.MainActivity.createExcel(MainActivity.java:189)
W/System.err:     at com.mycoprod.akhetib.mycoprod.MainActivity.access$100(MainActivity.java:21)
W/System.err:     at com.mycoprod.akhetib.mycoprod.MainActivity$1.onClick(MainActivity.java:59)
W/System.err:     at android.view.View.performClick(View.java:4475)
W/System.err:     at android.view.View$PerformClick.run(View.java:18786)
W/System.err:     at android.os.Handler.handleCallback(Handler.java:730)
W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:92)
W/System.err:     at android.os.Looper.loop(Looper.java:176)
W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5419)
W/System.err:     at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err:     at java.lang.reflect.Method.invoke(Method.java:525)
W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
W/System.err:     at dalvik.system.NativeStart.main(Native Method)
W/System.err: Warning:  Usage of a local non-builtin name
W/System.err: Warning:  Cannot find drawing record - using continue record
W/System.err: Warning:  Cannot find drawing record - using continue record
W/System.err: Warning:  Cannot find drawing record - using continue record
W/System.err: Warning:  Cannot find drawing record - using continue record
W/System.err: Warning:  Cannot find drawing record - using continue record

Je ne comprends vraiment pas pourquoi, please help me.

Cordialement.

Copier un fichier excel - Erreur