# Question about installing broker **URL:** \ **Category:** Zeek\ **Created:** [February 9, 2017, 9:20pm UTC](https://community.zeek.org/t/question-about-installing-broker/4657 "2017-02-09T21:20:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ren\_Wenyu](https://avatars.discourse-cdn.com/v4/letter/r/977dab/32.png) [@Ren\_Wenyu](https://community.zeek.org/u/Ren_Wenyu)\ **Post date:** [February 9, 2017, 9:20pm UTC](https://community.zeek.org/t/question-about-installing-broker/4657/1 "2017-02-09T21:20:59Z")
Dear all, I have problem installing Broker. I installed CAF from the source. When I tried to install Broker, I got the following error. Build Directory : build Source Directory: /home/rwy/Downloads/broker -- Found CAF: /usr/local/lib/libcaf\_core.so;/usr/local/lib/libcaf\_io.so found components: core io CMake Error at CMakeLists.txt:21 (message):   Broker requires CAF version 0.14, older and newer versions are not   supported. Detected version: 0.15.3 -- Configuring incomplete, errors occurred! See also "/home/rwy/Downloads/broker/build/CMakeFiles/CMakeOutput.log". It seems that Broker only support CAF version 0.14 but not any higher version. Is there a workaround for this? Or I need to find a lower version of CAF to install? And all the examples in Broker's documents are in C. Are there any python examples to show how to use Broker in python? Thanks a lot. Wenyu ---
**Author:** ![Daniel\_Thayer](https://avatars.discourse-cdn.com/v4/letter/d/8dc957/32.png) [@Daniel\_Thayer](https://community.zeek.org/u/Daniel_Thayer)\ **Post date:** [February 9, 2017, 9:59pm UTC](https://community.zeek.org/t/question-about-installing-broker/4657/2 "2017-02-09T21:59:09Z")
You can download older versions of CAF from this page: [https://github.com/actor-framework/actor-framework/releases](https://github.com/actor-framework/actor-framework/releases) ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\ **Post date:** [May 6, 2022, 3:44pm UTC](https://community.zeek.org/t/question-about-installing-broker/4657/3 "2022-05-06T15:44:36Z")
Closed on May 6, 2022, 3:44pm UTC