Unable to connect to bitbake server

Question

Im trying to setup bitbake tool and trying to follow the tutorial

https://www.yoctoproject.org/docs/1.8/bitbake-user-manual/bitbake-user-manual.html#bitbake-examples

Now when I run the bitbake command I get the following error,

p@p-ubuntu:~/ba/bitbake$ bitbake
NOTE: Retrying server connection... (Traceback (most recent call last):
  File "/home/p/ba/bitbake/lib/bb/main.py", line 428, in setup_bitbake
    topdir, lock = lockBitbake()
  File "/home/p/ba/bitbake/lib/bb/main.py", line 480, in lockBitbake
    lockfile = topdir + "/bitbake.lock"
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
)
NOTE: Retrying server connection... (Traceback (most recent call last):
  File "/home/p/ba/bitbake/lib/bb/main.py", line 428, in setup_bitbake
    topdir, lock = lockBitbake()
  File "/home/p/ba/bitbake/lib/bb/main.py", line 480, in lockBitbake
    lockfile = topdir + "/bitbake.lock"
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

How do I start the bitbake server?

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As far as I understood, this is a network related issue. Try setting eth0 up and down, and then try again. Also, see if you've setup the environment correctly. Remember that environment should be setup from BSP_DIR. — surendra nath, Jul 28 '17 at 13:34

score 63 · Answer 1 · answered Jun 01 '20 at 17:10

63

I had the same problem after I canceled a bitbake-process harshly (ctrl-c).

After removing the file bitbake.lock in the build-folder, bitbake worked again as intended.

rm bitbake.lock

answered Jun 01 '20 at 17:10

dertom

780
5
5

2

Thank you. This was it for me. – Trevor Jul 06 '20 at 21:25
1

Worked for me, although I had to remove `bitbake.sock` and `hashserve.sock` as well – Matteus Hemström Feb 01 '21 at 19:06

score 5 · Answer 2 · answered Jan 31 '19 at 14:12

I was following the Yocto tutorial too and had the exact same error. I am running Ubuntu 16.04 in a Virtual Box 6.0 environment on my Windows 10 system.

I finally figured out that using BitBake on a shared folder produce that error. For some reason, installing the Yocto project with the Bitbake on a Virtual Box "sf_" shared folder produce that error.

I then created a fresh folder not on a shared folder of my Ubuntu and redone the Yocto tutorial steps there and the Bitbake command ran succesfully ! It's building the tutorial project while I write those lines.

Hope it will help you with your problem !

score 3 · Answer 3 · answered May 09 '19 at 07:26

$ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
 build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
 xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev \
 xterm

I accidentally skipped this step in the manual - resolved my issue, hopefully yours

score 2 · Answer 4 · answered Oct 07 '17 at 19:46

2

You have to run bitbake command from build directory. I also had the same issue since i was not running it from build directory.

answered Oct 07 '17 at 19:46

Nithin Kurian

91
2
12

ljonya · Answer 5 · 2017-08-25T12:03:59.060

1

This is because new function findTopdir (Submitted on July 18, 2017) does not handle errors. For example, the lack of BBPATH environment variable and the inability to find conf/bblayers.conf in BBPATH. findTopdir just returns None in case of that errors.

edited Aug 25 '17 at 12:03

answered Aug 25 '17 at 11:55

ljonya

11
2

score 1 · Answer 6 · answered Oct 11 '17 at 02:18

1

Install needed support packages: install gawk wget git-core diffstat unzip texinfo gcc-multilib \ build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \ xz-utils debianutils iputils-ping

answered Oct 11 '17 at 02:18

ghecu

11
2

score 0 · Answer 7 · answered Jul 02 '21 at 13:57

I received the same error, after I managed to run a bitbake command that deleted my current derictory. (bitbake -c clean <something> while I was in the work directory of <something>).

The solution is then quite simple: change to another directory, e.g. cd $BUILDDIR.

score 0 · Answer 8 · answered Jul 28 '21 at 11:41

0

In my way, It works fine when I delete the dir build/ and source oe-init.. again. You can try this if you don't have built the project.

answered Jul 28 '21 at 11:41

BBear

1

score -4 · Answer 9 · edited Feb 28 '19 at 09:56

-4

install these packages:

sudo apt-get install makeinfo textinfo texi2html

edited Feb 28 '19 at 09:56

Suraj Rao

29,388
11
94
103

answered Feb 28 '19 at 09:48

Lokesh sharma

1

Unable to connect to bitbake server

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