[libcamera-devel,v8] Add alternative meson install command
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Message ID 20210331071600.33845-1-vedantparanjape160201@gmail.com
State Accepted
Headers show
Series
  • [libcamera-devel,v8] Add alternative meson install command
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Commit Message

Vedant Paranjape March 31, 2021, 7:16 a.m. UTC
While installing meson using pip3 install --user meson, due to python
path issues, build.ninja can't be located by ninja. meson generates
ninja files fine, but then when you run ninja, it is unable to find
meson's build.ninja python module due to path issues.
It gives the following error on ninja -C build install:

ninja: Entering directory `build'
ninja: error: loading 'build.ninja': No such file or directory

After uninstalling meson using pip3 and installing it again using pip
without --user argument solved the issue.

Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com>
---
Changes in v8:
* Updated README.rst to describe meson install issue
* Removed "changelog" heading from commit message
* Fixed few grammatical mistakes
* Reworded few sentences
* Fixed line width issues and some grammatical mistakes
* Added a troubleshooting section to the readme to describe this issue and 
suggest possible solutions.

 README.rst | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

Comments

Paul Elder March 31, 2021, 7:40 a.m. UTC | #1
Hi Vedant,

On Wed, Mar 31, 2021 at 12:46:00PM +0530, Vedant Paranjape wrote:
> While installing meson using pip3 install --user meson, due to python
> path issues, build.ninja can't be located by ninja. meson generates
> ninja files fine, but then when you run ninja, it is unable to find
> meson's build.ninja python module due to path issues.
> It gives the following error on ninja -C build install:
> 
> ninja: Entering directory `build'
> ninja: error: loading 'build.ninja': No such file or directory
> 
> After uninstalling meson using pip3 and installing it again using pip
> without --user argument solved the issue.
> 
> Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com>
> ---
> Changes in v8:
> * Updated README.rst to describe meson install issue
> * Removed "changelog" heading from commit message
> * Fixed few grammatical mistakes
> * Reworded few sentences
> * Fixed line width issues and some grammatical mistakes
> * Added a troubleshooting section to the readme to describe this issue and 
> suggest possible solutions.

I meant in the changelog, not here (not sure what this section is called
actually). Also s/Added/Add/

With this fixed,

Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>

> 
>  README.rst | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/README.rst b/README.rst
> index 1427c714..5ebe3938 100644
> --- a/README.rst
> +++ b/README.rst
> @@ -104,3 +104,25 @@ onto the default video display element on your system.
>    gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! videoconvert ! autovideosink
>  
>  .. section-end-getting-started
> +
> +Troubleshooting
> +~~~~~~~~~~~~~~~
> +
> +Several users have reported issues with meson installation, crux of the issue
> +is a potential version mismatch between the version that root uses, and the
> +version that the normal user uses. On calling `ninja -C build`, it can't find
> +the build.ninja module. This is a snippet of the error message.
> +
> +:: 
> +
> +  ninja: Entering directory `build'     
> +  ninja: error: loading 'build.ninja': No such file or directory
> +
> +This can be solved in two ways: 
> +
> +1) Don't install meson again if it is already installed system-wide. 
> +
> +2) If a version of meson which is different from the system-wide version is
> +already installed, uninstall that meson using pip3, and install again without
> +the --user argument.
> +
> -- 
> 2.25.1
> 
> _______________________________________________
> libcamera-devel mailing list
> libcamera-devel@lists.libcamera.org
> https://lists.libcamera.org/listinfo/libcamera-devel

Patch
diff mbox series

diff --git a/README.rst b/README.rst
index 1427c714..5ebe3938 100644
--- a/README.rst
+++ b/README.rst
@@ -104,3 +104,25 @@  onto the default video display element on your system.
   gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! videoconvert ! autovideosink
 
 .. section-end-getting-started
+
+Troubleshooting
+~~~~~~~~~~~~~~~
+
+Several users have reported issues with meson installation, crux of the issue
+is a potential version mismatch between the version that root uses, and the
+version that the normal user uses. On calling `ninja -C build`, it can't find
+the build.ninja module. This is a snippet of the error message.
+
+:: 
+
+  ninja: Entering directory `build'     
+  ninja: error: loading 'build.ninja': No such file or directory
+
+This can be solved in two ways: 
+
+1) Don't install meson again if it is already installed system-wide. 
+
+2) If a version of meson which is different from the system-wide version is
+already installed, uninstall that meson using pip3, and install again without
+the --user argument.
+