<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7650.28"> <TITLE>error install .plt file</TITLE> </HEAD> <BODY>  This is from a new user tring to install mrmathematica: ================== Here is the error message I get when trying to "Install .plt file" setup-plt: Setup version is 350 setup-plt: Main collection path is /Applications/PLT Scheme v350/collects setup-plt: Collection search path is setup-plt:   /Users/krgue/Library/PLT Scheme/350/collects setup-plt:   /Applications/PLT Scheme v350/collects setup-plt: Unpacking DrMathematica from /Users/krgue/Documents/computing/scheme/mrmathematica/mrmathematica.plt setup-plt:   making directory mrmathematica in /Users/krgue/Library/PLT Scheme/350/collects/ setup-plt:   unpacking doc.txt in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking info.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking installer.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking mathematica.png in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking mathematica.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking ml.c in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking tool.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking translation.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt: Warning: broken compiled/expanded code or wrong namespace; cannot find instance to restore imported renamings from module: |,/Applications/PLT Scheme v350/collects/mzlib/port| setup-plt: don't know how to compile collection: mrmathematica ================================= Disregard my previous email.  I just quit DrScheme, removed my /Library/PLT Scheme directory and tried again.  This time I got the output below.  It looks like I need to set an environment variable, but to what should I set it? setup-plt: Setup version is 350 setup-plt: Main collection path is /Applications/PLT Scheme v350/collects setup-plt: Collection search path is setup-plt:   /Users/krgue/Library/PLT Scheme/350/collects setup-plt:   /Applications/PLT Scheme v350/collects setup-plt: Unpacking DrMathematica from /Users/krgue/Documents/computing/scheme/mrmathematica/mrmathematica.plt setup-plt:   making directory mrmathematica in /Users/krgue/Library/PLT Scheme/350/collects/ setup-plt:   unpacking doc.txt in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking info.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking installer.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking mathematica.png in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking mathematica.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking ml.c in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking tool.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt:   unpacking translation.ss in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ setup-plt: Pre-Installing DrMathematica extension-installer: can't find needed include files and/or library; try setting the environment variable PLT_EXTENSION_LIB_PATHS setup-plt: Compiling .zos used by DrMathematica setup-plt:   in /Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ open-input-file: cannot open input file: "/Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ml.ss" (No such file or directory; errno=2) setup-plt: Updating /Users/krgue/Library/PLT Scheme/350/collects/info-domain/compiled/cache.ss setup-plt: Done setting up setup-plt: setup-plt: Error during Early Install for DrMathematica (/Users/krgue/Library/PLT Scheme/350/collects/mrmathematica) setup-plt:   extension-installer: can't find needed include files and/or library; try setting the environment variable PLT_EXTENSION_LIB_PATHS setup-plt: Error during Compiling .zos for DrMathematica (/Users/krgue/Library/PLT Scheme/350/collects/mrmathematica) setup-plt:   open-input-file: cannot open input file: "/Users/krgue/Library/PLT Scheme/350/collects/mrmathematica/ml.ss" (No such file or directory; errno=2) ======================= Could anyone please help? Many thanks. Chongkai </BODY> </HTML>