ection-number">1.4</span> Troubleshooting the installation</h2>
<p>Updates to CmdStan, changes in compiler options, or updates to the
C++ toolchain may result in errors when trying to compile a Stan program.
Often, these problems can be resolved by removing the existing CmdStan binaries
and recompiling. To do this, you must run the makefile commands
from the <code>&lt;cmdstan-home&gt;</code> directory:</p>
<pre><code>&gt; cd &lt;cmdstan-home&gt;
&gt; make clean-all    # on Windows use mingw32-make
&gt; make