Update install.rst

docs/install.rst

@@ -83,16 +83,33 @@ dependencies (mainly numpy and vispy), so run
 
    $ pip install p5 --user
 
-to install the latest p5 version. In case the automatically
+to install the latest p5 version.
+
+
+Troubleshooting
+---------------
+
+1. In case the automatically
 installation fails, try installing the dependencies separately:
 
 .. code:: bash
 
    $ pip install numpy
    $ pip install vispy
 
+2. If you get a error that says ``Microsoft Visual C++ is required`` then follow the below steps:
+
+- Install the prebuilt version of vispy from here: https://www.lfd.uci.edu/~gohlke/pythonlibs/#vispy. For instance if you have python 3.8 then download the cp38 one.
+
+- Open terminal and cd into the directory in which you downloaded the prebuilt vispy file.
+
+- Then in terminal type:
+    .. code:: bash
+
+        $ pip install file_downloaded.whl
+        $ pip install p5 --user
+
 In case of other installation problems, open an issue on the main `p5
 Github <https://github.com/p5py/p5/issues>`_ repository.
 
 
-