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1. Open a terminal window

2. Enter the following and then press `return`
   

   Code Block
   language bash
   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
   

   Code Block
   language bash
   sudo codesign --deep -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
   

   Code Block
   language bash
   codesign --verbose --verify <library path>

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

   Code Block
   language bash
   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 froze.

If libcudart.10.2.dylib Does Not Exist (2020.2)

There are two things you can do to fix this:

1. If you have the Matlab v97 runtime installed, it should include the same copy of this file that you need for v98. Copy-past this file from its folder within the v97 runtime directory to the same location in the v98 runtime directory.

   1. The file path given above for Imatest v2020.1 should be where you will find this file for the v97 runtime.

2. If you do not have the Matlab v97 runtime installed, we recommend reinstalling the Matlab v98 runtime. The fresh install should include the file that is missing.

**If you are still experiencing difficulties after following these instructions, please contact support@imatest.com.

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