[incubator-devlake-website] 01/03: docs: troubleshooting for ubuntu in refdiff.md

[yu...@apache.org]

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commit 00dee4415ae840f6ff53cd1c736b72e7a622546a
Author: thenicetgp <13...@163.com>
AuthorDate: Mon Sep 5 22:47:04 2022 +0800

    docs: troubleshooting for ubuntu in refdiff.md
---
 docs/Plugins/refdiff.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/docs/Plugins/refdiff.md b/docs/Plugins/refdiff.md
index 65e5f6409..b7b3407a3 100644
--- a/docs/Plugins/refdiff.md
+++ b/docs/Plugins/refdiff.md
@@ -109,6 +109,24 @@ make
 make install
 ```
 
+#### Troubleshooting (Ubuntu)
+
+> Q: # pkg-config --cflags  -- libgit2 Package libgit2 was not found in the pkg-config search path.
+Perhaps you should add the directory containing `libgit2.pc` to the PKG_CONFIG_PATH environment variable
+No package 'libgit2' found pkg-config: exit status 1
+
+> A:
+> Make sure your pkg config path covers the installation:
+> if your libgit2.pc in `/usr/local/lib64/pkgconfig`
+> 
+> `export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib64:/usr/local/lib64/pkgconfig`
+> 
+> else if your libgit2.pc in `/usr/local/lib/pkgconfig`
+> 
+> `export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib:/usr/local/lib/pkgconfig`
+> 
+> else consider install pkgconfig or rebuild the libgit2
+
 ### MacOS
 
 NOTE：Do **NOT** install libgit2 via `MadPorts` or `homebrew`, install from source instead.