Shotgun Desktop / browser integration fails to launch on Linux

When running the Shotgun Desktop on Linux for the first time, you may experience one of these error messages. If so, please follow the steps below for your specific error to see if that resolves things. If you’re still stuck, please don’t hesitate to contact support@shotgunsoftware.com.

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Errors

importing '/opt/Shotgun/Resources/Python/tk-framework-desktopstartup/python/server/resources/python/dist/linux/cryptography/_Cryptography_cffi_36a40ff0x2bad1bae.so':
 /opt/Shotgun/Resources/Python/tk-framework-desktopstartup/python/server/resources/python/dist/linux/cryptography/_Cryptography_cffi_36a40ff0x2bad1bae.so: symbol ECDSA_OpenSSL, version OPENSSL_1.0.1_EC not defined in file libcrypto.so.10 with link time reference
AttributeError: 'module' object has no attribute 'HTTPSConnection'

Solution

You need to install OpenSSL. To do so, run the following command as an administrator:

$ yum install openssl

Error

Browser Integration failed to start. It will not be available if you continue.
libffi.so.5: cannot open shared object file: No such file or directory

Solution

You need to install libffi. To do so, run the following command as an administrator:

yum install libffi

If you’ve installed libffi and it still doesn’t work, try creating the following symlink and then re-launching the Shotgun Desktop:

sudo ln -s /usr/lib64/libffi.so.6.0.1 /usr/lib64/libffi.so.5

Some users have reported success with the above. Others still have issues. The latest version of Shotgun Desktop added some additional dependencies with the web socket server which we’re currently looking into.

Possible errors

Browser Integration failed to start. It will not be available if you continue.
Error: There was a problem validating if the certificate was installed. 
certutil: function failed: SEC_ERROR_BAD_DATABASE: security library: bad database.

Solution

If you have Google Chrome installed on your computer, launch it and then relaunch the Shotgun Desktop. If you still have the issue, please contact support@shotgunsoftware.com.

If you don’t have Chrome, open a terminal and run the following command:

ls -al $HOME/.pki/nssdb

If that search does not come up empty, please contact support and attach the contents of the following log file to your ticket:

~/.shotgun/logs/tk-desktop.log

If the search did come up empty, then type the following:

$ mkdir --parents ~/.pki/nssdb
$ certutil -N -d "sql:$HOME/.pki/nssdb"

Do not enter any password.

Launching the Shotgun Desktop should now work correctly.

Incompatible Qt versions

Possible errors

Cannot mix incompatible Qt library (version 0x40805) with this library (version 0x40807)

Solution

Often this comes up because there is an override happening that ends up loading incompatible Qt libraries. You can try modifying your environment with this command to keep that from happening:

unset QT_PLUGIN_PATH

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