DOC: add trouble shooting for building

doc/Install_develop.rst

@@ -103,6 +103,22 @@ Known problems
 Troubleshooting
 ~~~~~~~~~~~~~~~
 
+Warning: WARNING: GCC OLD ABI COMPATIBILITY
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Just do what it says. Either run
+
+.. code:: console
+
+   conan profile update settings.compiler.libcxx=libstdc++11 default
+
+or change `~/.conan/profiles/default` or use another conan profile.
+
+/bin/sh: line 1: cmake: command not found
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Install cmake.
+
 ``conan install`` fails due to missing prebuilts
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^