"PortalException "が発生しました：新規Blogs画像追加時に「Unable to get a unique file name（固有のファイル名を取得できません）」が発生する。
written-by
Roberto Díaz
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問題
再現するための手順
新しいブログのエントリーを追加する
このブログのエントリに新しいカバー画像を追加する
エントリーを保存する
期待される動作画像はアップロードされます
現在の動作です：エラーがスローされ、ログにこれに似たエラーが見つかりました：
ERROR com.liferay.blogs.web.internal.portlet.action.EditEntryMVCActionCommand - com.liferay.portal.kernel.exception.PortalException: Unable to get a unique file name for image.png in folder 75309953 com.liferay.portal.kernel.exception.PortalException: Unable to get a unique file name for image.png in folder 75309953 at com.liferay.portlet.blogs.BlogsEntryAttachmentFileEntryHelper.getUniqueFileName(BlogsEntryAttachmentFileEntryHelper.java:206) at com.liferay.portlet.blogs.BlogsEntryAttachmentFileEntryHelper.addBlogsEntryAttachmentFileEntry(BlogsEntryAttachmentFileEntryHelper.java:100) at com.liferay.portlet.blogs.BlogsEntryAttachmentFileEntryHelper.addBlogsEntryAttachmentFileEntries(BlogsEntryAttachmentFileEntryHelper.java:55) at com.liferay.blogs.web.internal.portlet.action.EditEntryMVCActionCommand.updateEntry(EditEntryMVCActionCommand.java:548) at com.liferay.blogs.web.internal.portlet.action.EditEntryMVCActionCommand$UpdateEntryCallable.call(EditEntryMVCActionCommand.java:677) at com.liferay.blogs.web.internal.portlet.action.EditEntryMVCActionCommand$UpdateEntryCallable.call(EditEntryMVCActionCommand.java:673) at com.liferay.portal.spring.transaction.TransactionInvokerImpl$CallableMethodInvocation.proceed(TransactionInvokerImpl.java:101) at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:54) at com.liferay.portal.spring.transaction.TransactionInvokerImpl.invoke(TransactionInvokerImpl.java:47) at com.liferay.portal.kernel.transaction.TransactionInvokerUtil.invoke(TransactionInvokerUtil.java:28) at com.liferay.blogs.web.internal.portlet.action.EditEntryMVCActionCommand.doProcessAction(EditEntryMVCActionCommand.java:192) at com.liferay.portal.kernel.portlet.bridges.mvc.BaseMVCActionCommand.processAction(BaseMVCActionCommand.java:61) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:380) at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:93) at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:260)
