Imatest freezing on macOS for 2021.1 and prior

Problem

An issue has arisen on earlier releases of Imatest where common modules and utilities that formerly worked are now freezing. If this is the case on your machine, please try the solution below.

Solution

To resolve this issue, the code-signature for the version of libcudart.dylib needs to be updated. While this sounds complicated, it can be accomplished with a single terminal command. In order to run this command, you need to know the file path to the libcudart.dylib that comes with the MATLAB Runtime. The file paths for the most recent affected Imatest versions are in the table below:

Once you know the file path, please perform the following steps on the mac on which you have installed Imatest:

1. Open a terminal window

2. Enter the following and then press `return`
   

   sudo codesign --deep -fs - <library path>

   where <library path> should be replaced with the library path from the table above. Please note the spaces surrounding the trailing -.
   
   For example, for Imatest 2021.1, you would run
   

   sudo codesign -fs - /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib

3. [Optional] Verify that the library was successfully code-signed by running the following
   

   codesign --verbose --verify <library path>

   
   If the code-signing operation was successful, you should see output similar to
   

   codesign --verify --verbose /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib
   /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib: valid on disk
   /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib: satisfies its Designated Requirement

4. Start Imatest as normal and attempt the operation that previously frozen .
   

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