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    <p>Here's a bit hackish way to try to diagnose:</p> <ol> <li>Install <code>tcpdump</code> (something like <code>sudo apt-get install tcpdump</code> on Debian-like system).</li> <li>In Emacs, <kbd>M-x</kbd><code>shell</code></li> <li>In the shell buffer type this: <code>sudo tcpdump -i lo -A -q -nn -t</code></li> <li><kbd>M-x</kbd><code>slime</code>.</li> <li>You will have to see output similar to the below, but probably probably different.</li> </ol> <hr> <pre><code>[sudo] password for wvxvw: tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes IP 127.0.0.1.36590 &gt; 127.0.0.1.59445: tcp 0 E..&lt;%.@.@..............5.5...........0......... .H.......... IP 127.0.0.1.59445 &gt; 127.0.0.1.36590: tcp 0 .....0......... .H...H...... IP 127.0.0.1.36590 &gt; 127.0.0.1.59445: tcp 0 72o....V.(..... .H...H.. IP 127.0.0.1.36590 &gt; 127.0.0.1.59445: tcp 66 72o....V.j..... .H...H..00003c(:emacs-rex (swank:connection-info) "COMMON-LISP-USER" t 2) IP 127.0.0.1.59445 &gt; 127.0.0.1.36590: tcp 0 E..4..@.@............5..72o..5.O...V.(..... .H...H.. IP 127.0.0.1.59445 &gt; 127.0.0.1.36590: tcp 1314 E..V..@.@............5..72o..5.O...V.K..... .I...H..00051C(:return (:ok (:pid 8924 :style :spawn :encoding (:coding-systems </code></pre> <p>Post your output, this way we'll know on what stage of connection it failed to connect. What the above does: it shows all the traffic going on your local loopback interface. So you want to make sure you aren't posting anything confidential :)</p> <hr> <p>to make sure you can create files in your home directory:</p> <p>Tell us what you see when you do:</p> <pre><code>$ ls -la ~ | grep ' \.$' | awk '{ print $1 }' </code></pre> <p>This should be: <code>drwx------.</code> But if it isn't, do:</p> <pre><code>$ chmod u+rwx ~ </code></pre> <p>If the directory <code>.cache</code> is already there, do the same procedure for it too, i.e. make sure that the owner of the directory can read, write and execute (opening directories requires execute permissions).</p>
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    1. POLisp environment with Emacs - slime not loading
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    1. COI get: * ; loading #P"/usr/share/common-lisp/source/slime/swank-loader.lisp" ;; ;; Error while ???ing /usr/share/common-lisp/source/slime/swank-backend.lisp: ;; can't create directory /home/marty/.cache/common-lisp/sbcl-1.0.55.0.debian-linux-x86/ ;; Aborting. ;; *
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    2. CO@martina is it possible that your home directory is write-protected? I.e. that when you start Lisp it won't be able to create directories in it?
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    3. COindeed, if I open that directory, I cannot create any other things within it.
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