# Koa.2a installation error **URL:** \ **Category:** Site Operations Help\ **Tags:** how-to\ **Created:** [April 5, 2021, 2:10pm UTC](https://discuss.openedx.org/t/koa-2a-installation-error/4680 "2021-04-05T14:10:04Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![am2021](https://avatars.discourse-cdn.com/v4/letter/a/90ced4/32.png) [@am2021](https://discuss.openedx.org/u/am2021)\ **Post date:** [April 5, 2021, 2:10pm UTC](https://discuss.openedx.org/t/koa-2a-installation-error/4680/1 "2021-04-05T14:10:05Z")
Hi I am trying to install KOA.2a, I got the following error, please help: "ERROR: No matching distribution found for py2neo==3.1.2 (from -r /edx/app/edxapp/edx-platform/requirements/edx/base.txt (line 178)) ---
**Author:** ![Maksim\_Sokolskiy](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.openedx.org/maksim_sokolskiy/32/8303_2.png) [@Maksim\_Sokolskiy](https://discuss.openedx.org/u/Maksim_Sokolskiy)\ **Post date:** [April 5, 2021, 6:03pm UTC](https://discuss.openedx.org/t/koa-2a-installation-error/4680/2 "2021-04-05T18:03:12Z")
Hi, @am2021 The fix is already in [koa.master](https://github.com/edx/edx-platform/tree/open-release/koa.master) and will be tagged as `koa.3` on April 9. Meanwhile you can use koa.master as a working branch. ---
**Author:** ![am2021](https://avatars.discourse-cdn.com/v4/letter/a/90ced4/32.png) [@am2021](https://discuss.openedx.org/u/am2021)\ **Post date:** [April 6, 2021, 6:48am UTC](https://discuss.openedx.org/t/koa-2a-installation-error/4680/3 "2021-04-06T06:48:37Z")
Hi, Thanks for your reply. Tried again, got another error: ERR! Error while executing:\nnpm ERR! /usr/bin/git ls-remote -h -t [https://git@github.com/joshivj/edx-proctoring-proctortrack.git\nnpm](https://git@github.com/joshivj/edx-proctoring-proctortrack.git%5Cnnpm) ERR! \nnpm ERR! fatal: unable to access ‘[https://github.com/joshivj/edx-proctoring-proctortrack.git/](https://github.com/joshivj/edx-proctoring-proctortrack.git/)’: Failed to connect to [github.com](http://github.com) port 443: Connection refused\nnpm ERR! \nnpm ERR! exited with error code: 128\nnpm WARN tar ENOENT: no such file or directory, open ‘/edx/app/edxapp/edx-platform/node\_modules/.staging/[@edx](https://discuss.openedx.org/groups/edx)/studio-frontend-5291f5b7/src/data/i18n/locales/zh\_CN.json’\nnpm Ran curl [https://github.com/joshivj/edx-proctoring-proctortrack.git/](https://github.com/joshivj/edx-proctoring-proctortrack.git/), got following returned 301 Moved Permanently # 301 Moved Permanently * * * nginx