Project Load Error by SimBiology Model Analyzer

I’m using SimBiology Model Analyzer (MATLAB R2022b).

I can load the file created by another computer but cannot load the file I created.

Error message is below.

Project Load Errors: Unable to load project, the client encountered an exception : TypeError: Cannot read properties of null (reading 'info')

Is there any way to solve the error?

Thank you.

[Song-Hyun Ji]

Which MATLAB version is the file created by another computer?

[Reira]

As far as I tried, it was possible to read files created by R2017a, R2022a, R2022b.

[Priya Moorthy]

I am sorry that you are encountering errors loading this project. Could you let us know the output of “ver” so we know which update release of R2022b you are using? That would help us narrow down the issue. If it’s possible for you to send your project to us, we can also investigate what’s going wrong while loading this project.

Priya

[Reira]

The output of “ver” is below. License number is omitted.

---------------------------------------------------------------------------------------------------

MATLAB version: 9.13.0.2049777 (R2022b)

Operating system: Microsoft Windows 10 Enterprise Version 10.0 (Build 19042)

Java version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

---------------------------------------------------------------------------------------------------

MATLAB version 9.13 (R2022b)

Global Optimization Toolbox version 4.8 (R2022b)

Optimization Toolbox version 9.4 (R2022b)

Parallel Computing Toolbox version 7.7 (R2022b)

SimBiology version 6.4 (R2022b)

Statistics and Machine Learning Toolbox version 12.4 (R2022b)

>>

I'm preparing a file that generates an error, which is fine to send.

[Reira]

I prepared a file that gives an error (although error code is another one), and I found old fit project including non-existing name may cause error.

I apologize to you for a fuss over.

[Priya Moorthy]

Hi, Reira,

I apologize for the issues you have run into with loading projects. Even if a program setup is not correct, the project ought to load correctly or give you a more helpful error message.

It looks like you are running into a bug in the original release of R2022b. Projects with fit or group simulation programs that have unchecked responses in the Data Map section can error during load. More information and a potential workaround can be found in this bug report:

https://www.mathworks.com/support/bugreports/2827329

The bug has been fixed in R2022b Update 1; are you able to update your installation of MATLAB?

The original error you described sounds like a different issue. If you can share that project, we would be happy to look into it further.

Best,

Priya

[Reira]

It is difficult to share the original file because it contains confidential information.

Since the error no longer occurs even with the original file when the old fit project is deleted, it is probably a similar cause. I will try updating MATLAB.

Thank you.

Answer 1

[Gustavo]

I am working with Matlab 2023a, and I have the same problem:

Is there any way to open the file?

[Priya Moorthy]

Hi, Gustavo,

I'm sorry that you are running into errors opening your project file. Although the error message is similar, you may have encountered a different issue than the one mentioned earlier in thread. Which update version of R2023a are you using? If you can share the project with me, I can investigate further.

Best,

Priya