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RKNPU2 FAQs

This document collects the common problems when using FastDeploy.

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Link issues in dynamic link library

Association issue

Problem Description

No problem during compiling, but the following error is reported when running the program

error while loading shared libraries: libfastdeploy.so.0.0.0: cannot open shared object file: No such file or directory

Analysis

The linker ld indicates that the library file cannot be found. The default directories for ld are /lib and /usr/lib. Other directories are also OK, but you need to let ld know where the library files are located.

Solutions

Temporary solution

This solution has no influence on the system, but it only works on the current terminal and fails when closing this terminal.

source PathToFastDeploySDK/fastdeploy_init.sh

Permanent solution

The temporary solution fails because users need to retype the command each time they reopen the terminal to run the program. If you don't want to constantly run the code, execute the following code:

source PathToFastDeploySDK/fastdeploy_init.sh
sudo cp PathToFastDeploySDK/fastdeploy_libs.conf /etc/ld.so.conf.d/
sudo ldconfig

After execution, the configuration file is written to the system. Refresh to let the system find the library location.