dynamic_bridge: error while loading shared libraries: libroscpp.so:

This error message indicates that the dynamic_bridge program is unable to find and load the libroscpp.so shared library file.

To resolve this issue, you can try the following steps:

1. Check if the libroscpp.so file exists in the system. You can use the following command to search for the file:

sudo find / -name "libroscpp.so"

If the file is found, note down its path.

2. Check if the LD_LIBRARY_PATH environment variable is set correctly. This variable specifies the paths where the system should search for shared libraries. You can use the following command to check the value of the variable:

echo $LD_LIBRARY_PATH

If the variable is not set or set incorrectly, you can set it using the following command:

export LD_LIBRARY_PATH=/path/to/lib

Replace "/path/to/lib" with the path where the libroscpp.so file is located.

3. If the above steps do not work, you can try reinstalling the library or the program that depends on it.

sudo apt-get install --reinstall <package-name>

Replace "<package-name>" with the name of the package that contains the libroscpp.so file.

4. If none of the above steps work, you can try rebuilding the program from its source code.

./configure
make
sudo make install

This will rebuild the program and link it with the correct shared libraries.