MATLAB 2018a及之前版本打包文件的一个Bug问题

问题描述：Error when using uigetdir() in deployed MATLAB application (java.lang​.IllegalAr​gumentExce​ption: eval requires a valid MCR id when running in standalone mode)

问题具体：

Error using matlab.ui.internal.dialog.FolderChooser/doShowDialog (line 70) Java exception occurred: java.lang.IllegalArgumentException: eval requires a valid MCR id when running in standalone mode. at com.mathworks.jmi.NativeMatlab.PostMatlabMessage(Native Method) at com.mathworks.jmi.NativeMatlab.postMatlabMessage(NativeMatlab.java:224) at com.mathworks.jmi.NativeMatlab.postMatlabMessage(NativeMatlab.java:240) at com.mathworks.jmi.MatlabLooper.postMatlabMessage(MatlabLooper.java:150) at com.mathworks.jmi.MatlabMCR.postAsync(MatlabMCR.java:1542) at com.mathworks.jmi.MatlabMCR.eval(MatlabMCR.java:518) at com.mathworks.jmi.Matlab.eval(Matlab.java:1197) at com.mathworks.jmi.MatlabPath$PathCallback.completed(MatlabPath.java:1449) at com.mathworks.jmi.MatlabMCR$InterestHandler.messageReceived(MatlabMCR.java:1663) at com.mathworks.jmi.NativeMatlab.ProcessPendingEvents(Native Method) at com.mathworks.jmi.NativeMatlab.processPendingEvents(NativeMatlab.java:508) at com.mathworks.jmi.AWTUtilities$MatlabLatch.safeWait(AWTUtilities.java:892) at com.mathworks.jmi.AWTUtilities$MatlabLatch.waitFcn(AWTUtilities.java:907) at com.mathworks.jmi.AWTUtilities$Latch.acquire(AWTUtilities.java:770) at com.mathworks.jmi.AWTUtilities$Invoker.invoke(AWTUtilities.java:500) at com.mathworks.jmi.AWTUtilities.invokeAndWaitInternal(AWTUtilities.java:250) at com.mathworks.jmi.AWTUtilities.invokeAndWait(AWTUtilities.java:111) Error in matlab.ui.internal.dialog.FolderChooser/show (line 48) Error in uigetdir_helper (line 32) Error in uigetdir (line 61) Error in Settings_Window>Select_Output_Report_Callback (line 275) Error in gui_mainfcn (line 95) Error in Settings_Window (line 42)

问题截图：

问题不大但糟心的很

解决方法：

这是一个已知的 bug  （2018a仍然存在，希望在2018b可以解决）

去这个地方https://download.csdn.net/download/sinat_38679789/10972043下载这个文件，然后搜索一下matlab路径下的所有的uigetdir，让把下载的文件放在比所有原来的uigetdir更高级的目录下，原来的那几个都不用动，什么时候bug修复了，什么时候把这个文件删了就行啦

这是私人的解决方案是我遇到这个问题，解决这个问题，从matlab社区Nate Ellingson大神提供的 脚本 copy过来的，在matlab官方上这个问题没有解决方法。

Dear Nate：If you see this   article and feel that what I have done is not appropriate, please  contact me, I will give you a satisfactory answer。Thanks for your help.

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