Error in using glue_stick_demo.ipynb

[shenw000]

When I run the command "import homography_est as hest" in glue_stick_demo.ipynb, the following error appears:

---

ImportError Traceback (most recent call last)
Cell In[1], line 1
----> 1 import homography_est as hest
3 line_seg0 = [hest.LineSegment(l[0], l[1])
4 for l in matched_lines0.reshape(-1, 2, 2)]
5 line_seg1 = [hest.LineSegment(l[0], l[1])
6 for l in matched_lines1.reshape(-1, 2, 2)]

ImportError: /lib/libceres.so.1: undefined symbol: _ZN6google21kLogSiteUninitializedE

---

So I look into the version of /lib/libceres.so.1, by command:
ls -ll /lib/* | grep libceres
the following appears:

---

-rw-r--r-- 1 root root 9847228 Jun 12 2020 /lib/libceres.a
lrwxrwxrwx 1 root root 13 Jun 12 2020 /lib/libceres.so -> libceres.so.1
lrwxrwxrwx 1 root root 18 Jun 12 2020 /lib/libceres.so.1 -> libceres.so.1.14.0
-rw-r--r-- 1 root root 2824976 Jun 12 2020 /lib/libceres.so.1.14.0

---

That means the actual version of /lib/libceres.so.1 is /lib/libceres.so.1.14.0
Is this the correct version for /lib/libceres.so.1?
Any suggestion how to fix it?

[iago-suarez]

Hi, It looks like you have a different version of ceres and there is some missing symbol. I think the missing symbol comes from glog. Can you compare the versions of ceres and glob that you have with the ones in Google Colab? Best, Iago. El 8 ago 2024, a las 22:32, shenw000 ***@***.***> escribió:  When I run the command "import homography_est as hest" in glue_stick_demo.ipynb, the following error appears:

…

________________________________ ImportError Traceback (most recent call last) Cell In[1], line 1 ----> 1 import homography_est as hest 3 line_seg0 = [hest.LineSegment(l[0], l[1]) 4 for l in matched_lines0.reshape(-1, 2, 2)] 5 line_seg1 = [hest.LineSegment(l[0], l[1]) 6 for l in matched_lines1.reshape(-1, 2, 2)] ImportError: /lib/libceres.so.1: undefined symbol: _ZN6google21kLogSiteUninitializedE So I look into the version of /lib/libceres.so.1, by command: ls -ll /lib/* | grep libceres the following appears: -rw-r--r-- 1 root root 9847228 Jun 12 2020 /lib/libceres.a lrwxrwxrwx 1 root root 13 Jun 12 2020 /lib/libceres.so -> libceres.so.1 lrwxrwxrwx 1 root root 18 Jun 12 2020 /lib/libceres.so.1 -> libceres.so.1.14.0 -rw-r--r-- 1 root root 2824976 Jun 12 2020 /lib/libceres.so.1.14.0 That means the actual version of /lib/libceres.so.1 is /lib/libceres.so.1.14.0 Is this the correct version for /lib/libceres.so.1? Any suggestion how to fix it? — Reply to this email directly, view it on GitHub<#32>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABYQZ3K554GJ5NRHB7C42EDZQPIU3AVCNFSM6AAAAABMHGQ3FGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGQ2TMNJXGY2TCMQ>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[shenw000]

Hi, It looks like you have a different version of ceres and there is some missing symbol. I think the missing symbol comes from glog. Can you compare the versions of ceres and glob that you have with the ones in Google Colab? Best, Iago. El 8 ago 2024, a las 22:32, shenw000 @.> escribió:  When I run the command "import homography_est as hest" in glue_stick_demo.ipynb, the following error appears:
…
________________________________ ImportError Traceback (most recent call last) Cell In[1], line 1 ----> 1 import homography_est as hest 3 line_seg0 = [hest.LineSegment(l[0], l[1]) 4 for l in matched_lines0.reshape(-1, 2, 2)] 5 line_seg1 = [hest.LineSegment(l[0], l[1]) 6 for l in matched_lines1.reshape(-1, 2, 2)] ImportError: /lib/libceres.so.1: undefined symbol: _ZN6google21kLogSiteUninitializedE So I look into the version of /lib/libceres.so.1, by command: ls -ll /lib/ | grep libceres the following appears: -rw-r--r-- 1 root root 9847228 Jun 12 2020 /lib/libceres.a lrwxrwxrwx 1 root root 13 Jun 12 2020 /lib/libceres.so -> libceres.so.1 lrwxrwxrwx 1 root root 18 Jun 12 2020 /lib/libceres.so.1 -> libceres.so.1.14.0 -rw-r--r-- 1 root root 2824976 Jun 12 2020 /lib/libceres.so.1.14.0 That means the actual version of /lib/libceres.so.1 is /lib/libceres.so.1.14.0 Is this the correct version for /lib/libceres.so.1? Any suggestion how to fix it? — Reply to this email directly, view it on GitHub<#32>, or unsubscribehttps://github.com/notifications/unsubscribe-auth/ABYQZ3K554GJ5NRHB7C42EDZQPIU3AVCNFSM6AAAAABMHGQ3FGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGQ2TMNJXGY2TCMQ. You are receiving this because you are subscribed to this thread.Message ID: @.*>

Thank you for the info, lago-suarez! How do I find the version number of libceres and glog used in Google Colab.
My versions for libceres and glog are:

ls -ll /lib/* | grep libceres
-rw-r--r-- 1 root root 9847228 Jun 12 2020 /lib/libceres.a
lrwxrwxrwx 1 root root 13 Jun 12 2020 /lib/libceres.so -> libceres.so.1
lrwxrwxrwx 1 root root 18 Jun 12 2020 /lib/libceres.so.1 -> libceres.so.1.14.0
-rw-r--r-- 1 root root 2824976 Jun 12 2020 /lib/libceres.so.1.14.0

ls -ll /lib/* | grep glog
-rw-r--r-- 1 root root 261226 Mar 22 2020 libglog.a
lrwxrwxrwx 1 root root 16 Mar 22 2020 libglog.so -> libglog.so.0.0.0
lrwxrwxrwx 1 root root 16 Mar 22 2020 libglog.so.0 -> libglog.so.0.0.0
-rw-r--r-- 1 root root 138440 Mar 22 2020 libglog.so.0.0.0

[iago-suarez]

Hi, sorry for late reply, it has been a busy week. You can run the same commands in Collab, you just need to add ! In the beginning.

Cheers,
Iago.