Cannot change support package to the "program files" directory
显示 更早的评论
>> matlabshared.supportpkg.setSupportPackageRoot('C:\Program Files\MATLAB\SupportPackages');
Error using matlabshared.supportpkg.setSupportPackageRoot
Unable to set the support package root directory
Caused by:
Error using matlabshared.supportpkg.internal.SingleRootHandler.checkDirectory
The specified support package root folder name contains a space character.
Create or use a folder name that does not contain any space characters.
>> matlabshared.supportpkg.setSupportPackageRoot('C:\PROGRA~1\MATLAB\SupportPackages');
Error using matlabshared.supportpkg.setSupportPackageRoot
Unable to set the support package root directory
Caused by:
Error using matlabshared.supportpkg.internal.SingleRootHandler.checkDirectory
The specified support package root contains invalid characters.
Folder names can only contain alphanumeric characters, dashes and underscores.
采纳的回答
Answer from AI:
The problem is that the MATLAB function matlabshared.supportpkg.setSupportPackageRoot strictly forbids spaces and special characters (including the tilde ~ used in Windows short paths) anywhere in the target folder path. [1, 2]
Here is exactly why both of your attempts failed:
- First Attempt (C:\Program Files\...): It failed because "Program Files" contains a literal space character.
- Second Attempt (C:\PROGRA~1\...): While using the Windows 8.3 short name removes the space, it introduces a tilde (~). The underlying MATLAB validation checks the string directly and considers the tilde an invalid special character, as it only permits alphanumeric characters, dashes, and underscores. [1, 2]
How to Fix It
Option 1: Use the MATLAB Default Location (Recommended)
Unless you have a specific reason to change it, let MATLAB use its built-in default path, which is pre-configured to avoid these syntax errors. Run the function with no arguments to reset it: [1]
matlab
matlabshared.supportpkg.setSupportPackageRoot('default')
(On Windows, this typically maps to C:\ProgramData\MATLAB\SupportPackages, which does not contain spaces). [1]
Option 2: Create a Custom, Clean Directory
If you must host it elsewhere, create a brand-new folder directly on your drive root or in a clean user path, and ensure you run MATLAB as an Administrator to grant it write permissions: [1, 2]
matlab
% 1. Create a clean folder (e.g., C:\MATLAB_SupportPackages)
% 2. Point MATLAB to it:
matlabshared.supportpkg.setSupportPackageRoot('C:\MATLAB_SupportPackages');
If you still encounter problems, contact support:
4 个评论
Ningping Fan
2026-10-14，12:48
I cannot use the default directory, because the company group policy does not allow an executable to run if it is not in the C:\Program Files\.... I wonder if the Matlab could set default directory to C:\Program Files\MATLAB\SupportPackages, instead of C:\ProgramData\MATLAB\SupportPackages
Ningping Fan
2026-10-16，13:03
编辑：Ningping Fan
2026-10-16，13:06
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Communications Toolbox 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
