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Press 'import data' button, there came "uiimport error"

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Yipeng Tang
Yipeng Tang on 14 Jul 2020
Commented: Walter Roberson on 21 Aug 2020
when I press the "import data" in the UI, there came an error as following:
error using uiimport (line 145)
Java exception occurred:
java.lang.NullPointerException
at java.util.Collections.addAll(Collections.java:5400)
at com.mathworks.mlwidgets.workspace.ImportFileChooser.setupExtensionsForDropDown(ImportFileChooser.java:47)
when i input "uiimport" in the command window, there came the warnings and errors as following(my matlab is Chinese version):
警告: 执行 'multimedia.internal.audio.file.PluginManager' 类析构函数时,捕获到以下错误:
MEX 文件 'D:\matlab2018\toolbox\shared\multimedia\+multimedia\+internal\+audio\+file\private\mexAudioPluginManager.mexw64' 无效: 缺少依赖共享库:
'D:\matlab2018/bin/win64\avfileiopluginmanager.dll->D:\matlab2018\toolbox\shared\multimedia\+multimedia\+internal\+audio\+file\private\mexAudioPluginManager.mexw64' 需要 'tamutil.dll'
'D:\matlab2018\toolbox\shared\multimedia\+multimedia\+internal\+audio\+file\private\mexAudioPluginManager.mexw64' 需要 'tamutil.dll'
出错 multimedia.internal.audio.file.PluginManager/delete (line 159)
mexAudioPluginManager('destroyPluginManager');
出错 multimedia.internal.audio.file.PluginManager (line 164)
function obj = PluginManager
出错 multimedia.internal.audio.file.PluginManager.getInstance (line 248)
localInstance = multimedia.internal.audio.file.PluginManager();
出错 internal.matlab.importtool.ImportableFileExtension>localAudioExtn (line 118)
fileExtTmp = multimedia.internal.audio.file.PluginManager.getInstance.ReadableFileTypes;
出错 internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 179)
dropdownList = {getString(message('MATLAB:codetools:uiimport:AudioFormatStr')),localAudioExtn(true);...
出错 internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
[fileExtnDesc, fileExtList] = importToolRecognizableFileDropdownInfo;
出错 uiimport (line 144)
[fileExtDesc, fileExtList] = ImportableFileExtension.getImportToolFileChooserDropDownInfo;
> In multimedia.internal.audio.file.PluginManager (line 164)
In multimedia.internal.audio.file.PluginManager.getInstance (line 248)
In internal.matlab.importtool.ImportableFileExtension>localAudioExtn (line 118)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 179)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
警告: 转义字符 '\m' 无效。有关支持的特殊字符,请参阅 'doc sprintf'
> In internal.matlab.importtool.ImportableFileExtension>localAudioExtn (line 121)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 179)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
警告: MEX 文件 'D:
> In internal.matlab.importtool.ImportableFileExtension>localAudioExtn (line 121)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 179)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
警告: 执行 'matlab.internal.video.PluginManager' 类析构函数时,捕获到以下错误:
MEX 文件 'D:\matlab2018\toolbox\shared\multimedia\+matlab\+internal\+video\private\mexVideoPluginManager.mexw64' 无效: 缺少依赖共享库:
'D:\matlab2018/bin/win64\avfileiopluginmanager.dll->D:\matlab2018\toolbox\shared\multimedia\+matlab\+internal\+video\private\mexVideoPluginManager.mexw64' 需要 'tamutil.dll'
'D:\matlab2018\toolbox\shared\multimedia\+matlab\+internal\+video\private\mexVideoPluginManager.mexw64' 需要 'tamutil.dll'
出错 matlab.internal.video.PluginManager/delete (line 188)
mexVideoPluginManager('destroyPluginManager');
出错 matlab.internal.video.PluginManager (line 193)
function obj = PluginManager
出错 matlab.internal.video.PluginManager.getInstance (line 270)
localInstance = matlab.internal.video.PluginManager();
出错 VideoReader.getFileFormats (line 222)
extensions = PluginManager.getInstance().ReadableFileTypes;
出错 internal.matlab.importtool.ImportableFileExtension>localVideoExtn (line 92)
videoFileFormats = VideoReader.getFileFormats;
出错 internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 190)
getString(message('MATLAB:codetools:uiimport:VideoFormatStr')),localVideoExtn(true);...
出错 internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
[fileExtnDesc, fileExtList] = importToolRecognizableFileDropdownInfo;
出错 uiimport (line 144)
[fileExtDesc, fileExtList] = ImportableFileExtension.getImportToolFileChooserDropDownInfo;
> In matlab.internal.video.PluginManager (line 193)
In matlab.internal.video.PluginManager.getInstance (line 270)
In VideoReader.getFileFormats (line 222)
In internal.matlab.importtool.ImportableFileExtension>localVideoExtn (line 92)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 190)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
警告: 转义字符 '\m' 无效。有关支持的特殊字符,请参阅 'doc sprintf'
> In internal.matlab.importtool.ImportableFileExtension>localVideoExtn (line 96)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 190)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
警告: MEX 文件 'D:
> In internal.matlab.importtool.ImportableFileExtension>localVideoExtn (line 96)
In internal.matlab.importtool.ImportableFileExtension>importToolRecognizableFileDropdownInfo (line 190)
In internal.matlab.importtool.ImportableFileExtension.getImportToolFileChooserDropDownInfo (line 71)
In uiimport (line 144)
I guess there might lose some library . When have ever met the similar problem? Thanks a lot for helping me solve this problem

Answers (1)

Arnav Dubey
Arnav Dubey on 21 Aug 2020
As per my knowledge, a workaround would be , you may use "uiimport" specifying the full path to the file:
>> uiimport('c:\myfiles\myfile.xlsx')
and maybe then try if you are able to reproduce the same error.

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