Starting PD it states:

libdir_loader: added 'Gem' to the global objectclass path

the folder
/extras/Gem/
exists

the /examples/ don't work
and renaming the Gem-objets with [Gem/objectname] doesn't work neither.

[gemwin] is successfully created,
but inside are all the broken objects.

here are two error-messages out of many similar ones, as an example:

 GLdefine GL_STENCIL_BUFFER_BIT
... couldn't create
 GEMglMatrixMode GL_MODELVIEW
... couldn't create

Did someone make it work?

/usr/lib/pd-l2ork/extra/Gem/examples/01.basic/01.redSquare.pd

https://pastebin.com/8yCwrsdY

.
My experience with other libraries is that I have call the objects like this:

[libraryname/objectname]

But no luck with Gem doing so, the objects are still red.

@lacuna What happens when you try to create [Gem]

red object

error: maximum object loading depth 1000 reached
 Gem
... couldn't create

[declare -lib Gem]

works!
but still those broken objects keep being red.
Even if I create them after I created [declare -lib Gem]

What Gem-related output do you see on the console (terminal console, not Purr Data console)?

pd-l2ork
guidir is /usr/lib/pd-l2ork/bin
priority 6 scheduling enabled.
priority 8 scheduling enabled.
[0425/210222.941051:WARNING:chrome_main_delegate.cc(565)] final extension: 

that warning is from startup on there

Then enter this in an object box:

[/usr/lib/pd-l2ork/extra/Gem/Gem.pd_linux]

What happens in the console after you type that in the object box and instantiate it (e.g., click on an empty part of the canvas)?

What happens in the console after you type that in the object box and instantiate it (e.g., click on an empty part of the canvas)?

nada.

in PD-console: "couldn't create."
Nothing in terminal

[/usr/lib/pd-l2ork/extra/Gem/Gem]

and that folder does not exist, as it is not listed in the pastebin-link above

Also in the example 01.redSquare.pd
(PD-console output higher in this thread)
I can not find the object [color] on my computer ...

does not create.

should it? Can paths be objects?

try this in the console:

ls /usr/lib/pd-l2ork/extra/Gem/Gem*

and

du -h /usr/lib/pd-l2ork/extra/Gem/Gem*

ls /usr/lib/pd-l2ork/extra/Gem/Gem*

ls /usr/lib/pd-l2ork/extra/Gem/Gem*
/usr/lib/pd-l2ork/extra/Gem/Gem.la
/usr/lib/pd-l2ork/extra/Gem/Gem-meta.pd
/usr/lib/pd-l2ork/extra/Gem/Gem.pd_linux
/usr/lib/pd-l2ork/extra/Gem/GemPrimer.pdf

du -h /usr/lib/pd-l2ork/extra/Gem/Gem*

du -h /usr/lib/pd-l2ork/extra/Gem/Gem*
4.0K /usr/lib/pd-l2ork/extra/Gem/Gem.la
4.0K /usr/lib/pd-l2ork/extra/Gem/Gem-meta.pd
5.6M /usr/lib/pd-l2ork/extra/Gem/Gem.pd_linux
568K /usr/lib/pd-l2ork/extra/Gem/GemPrimer.pdf

starting pd without flags:

objectclass path
/usr/lib/pd-l2ork/extra/Gem/Gem
... couldn't create

with flags like this:
pd-l2ork -nrt -noprefs -nostdpath

the same output as without flags

Also-- what distro are you running?

lol
Puppy Linux Xenial-64

didn't have any problems yet.

.
As far as I know there is no permission-issue:

Puppy-Linux doesn't use Sudo or anything.
I am root and there is a special "Spot"-folder, for online applications running as spot, with less permissions.
Pd is not in spot, and the Gem files neither. So spot has nothing to do with this.
I assume, that there are no permission-conflicts.

.
What should happen creating the objects containing the paths?
Should I try installing the newer Purr Data version?? Or Gem?

.
Could be the 64-bit an issue?
I read in other threads Gem was made for 32-bit?
Do you have it running with 64-bit?

"
Xenialpup 7.5 uses Ubuntu 16.04 Xenial Xerus packages and includes the bugfixes and improvements from the Woof CE build system. It is compatible with Ubuntu 16.04 packages. The Linux kernel version is [...] 4.9.58 for the 64-bit build.
"

Do you assume that the distro is the issue?

Could someone please give me a hint, what could be the problem with Gem?
Other libraries are working.

Is Gem running on your 64-bit Linux-distro with Purr-Data?

I'd definitely try installing a newer version of Purr Data.

1. cd /usr/lib/pd-l2ork/extra/Gem
2. pd-l2ork -noprefs -nostdpath -nrt -verbose
3. In an object box type Gem
4. Instantiate the object

What gets printed to the Pd console?

libftgl is missing?

Doing the same as before
[Gem] creates! Yes!
In the commandline (linux-console) [shortened]:

pd-l2ork -noprefs -nostdpath -nrt -verbose
Pd-L2Ork version 2.4.6 (20171213-rev.46ffba3)
compiled 22:30:53 Dec 13 2017
port 5401
guidir is /usr/lib/pd-l2ork/bin
"/usr/lib/pd-l2ork/bin"/nw/nw --user-data-dir="/root/.config/purr-data" "/usr/lib/pd-l2ork/bin" 5401 localhost pd-l2ork "/usr/lib/pd-l2ork/bin" xf3c100Waiting for connection request... 
[0426/002010.733670:WARNING:chrome_main_delegate.cc(565)] final extension: 
... connected
/etc/pd/gem.conf: No such file or directory
/root/.config/pure-data/gem.conf: No such file or directory
./gem.conf: No such file or directory
load plugins 'film' in '/usr/lib/pd-l2ork/extra/Gem/'
pattern : /usr/lib/pd-l2ork/extra/Gem/gem_film*.so
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_filmAVIPLAY.so'!
library loading returned: dlerror 'libaviplay-0.7.so.0: cannot open shared object file: No such file or directory'
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_filmGMERLIN.so'!
library loading returned: dlerror 'libgmerlin_avdec.so.1: cannot open shared object file: No such file or directory'
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_filmMPEG3.so'!
library loading returned: dlerror 'libmpeg3.so.2: cannot open shared object file: No such file or directory'
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_filmQT4L.so'!
library loading returned: dlerror 'libquicktime.so.2: cannot open shared object file: No such file or directory'
[...]
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_imageMAGICK.so'!
library loading returned: dlerror 'libMagick++-6.Q16.so.5: cannot open shared object file: No such file or directory'
[...]
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_imageMAGICK.so'!
library loading returned: dlerror 'libMagick++-6.Q16.so.5: cannot open shared object file: No such file or directory'


[...]
dylib loading file '/usr/lib/pd-l2ork/extra/Gem/gem_recordQT4L.so'!
library loading returned: dlerror 'libquicktime.so.2: cannot open shared object file: No such file or directory'
[...]

There are some more libs missing, maybe I should install them too?

All the examples of Gem seem to work now!
Even the teapod and openGL stuff.

And my final patches, also work. So nice!

Now I will review what those flags actually do:
https://puredata.info/docs/faq/commandline

But I am wondering, if I was lucky, that Gem is programmed for printing messages in the commandline and other non-working libraries probably won't do so?

Thank you so much

But I would suggest only using that flag with the "-noprefs" and "-nostdpath" flags. Then navigate to the relevant directory and try loading the relevant library.

Otherwise you'll get lots of verbose load messages which make it difficult to figure out what's relevant.