[ros-users] serial_port package failing to compile

Blaise Gassend blaise at willowgarage.com
Mon Nov 22 17:13:49 UTC 2010

As some other poster pointed out, serial_ports is in /opt/ros/cturtle,
so it is normal that permission is denied. The question is: why is it
trying to build it there? Did you install serial_port from a .deb, or
did you put it there yourself?

If you put it there yourself, was that the right thing to do (do you
intend for it to be made available to all users)? If yes, then build
the package as root, and put a ROS_NOBUILD in the package's directory.
If no, then put it somewhere in your home directory and add it to your
package path.

On Mon, Nov 22, 2010 at 9:08 AM, Blaise Gassend <blaise at willowgarage.com> wrote:
> It says "System Error: Permission denied", referring to
> "/opt/ros/cturtle/stacks/serial_port/build/CMakeCache.txt". Is it
> possible that you compiled as root, and are now trying to compile as
> yourself? I would recommend looking at file permissions to fix this
> problem.
> On Sun, Nov 21, 2010 at 8:11 PM, Matt McLellan <mattmclel at gmail.com> wrote:
>> Hi,
>> I'm having a problem building a package that has serial_port as a
>> dependency.  When I run 'rosmake', I get the following message in the
>> terminal:
>> [rosbuild] Building package serial_port
>>   [rosbuild] Including /opt/ros/cturtle/ros/core/rospy/cmake/rospy.cmake
>>   [rosbuild] Including /opt/ros/cturtle/ros/core/roscpp/cmake/roscpp.cmake
>>   [rosbuild] Including /opt/ros/cturtle/ros/core/roslisp/cmake/roslisp.cmake
>>   -- Configuring done
>>   CMake Error: Unable to open cache file for save.
>> /opt/ros/cturtle/stacks/serial_port/build/CMakeCache.txt
>>   CMake Error: : System Error: Permission denied
>> I've made sure that all users/groups/etc have read/write access to the
>> CMakeCache.txt file, but it still doesn't seem to work.
>> I'm using cturtle with the serial_port package, output from 'uname
>> -a': Linux robot-brain 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:26:08
>> UTC 2010 i686 GNU/Linux
>> Any help is greatly appreciated.
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