Description of problem:
When tilda is ran for the first time, it fails with
Unable to open lock directory: /home/<username>/.cache/tilda/locks
Creating the directory solves the problem.
Version-Release number of selected component (if applicable):
Name : tilda
Version : 1.2.1
Release : 1.fc21
Steps to Reproduce:
1. install tilda (or remove ~/.cache/tilda/locks)
2. run tilda
3. observe the error (if run from terminal)
tilda does not start
tilda creates necessary directories and starts. Removing content of ~/.cache should have no effect (except slowing them) on programs.
This bug is already fixed upstream in version 1.2.2. 
I will try to provide fixed packages as soon as possible.
tilda-1.2.2-1.fc21 has been submitted as an update for Fedora 21.
tilda-1.2.2-1.fc20 has been submitted as an update for Fedora 20.
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing tilda-1.2.2-1.fc20'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
tilda-1.2.2-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
tilda-1.2.2-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.