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• Why doesn't my cron.d per minute job run?

  - by Travis Griggs

  I have thrown a bunch of darts trying to get a python script of mine to execute every minute. So I thought I'd simplify it to just do the "simplest thing that could could possibly work" once per minute (I'm running debian/testing). I created a single line file in /etc/cron.d/perminute: * * * * * /bin/touch /home/me/ding_dong It's owned by root, and executable (not sure if either of those matter). And then I did: sudo service cron reload And then sit back and start running ls -ltr again and again in my home directory (/home/me). But my ding_dong file never shows up. I know if I do a sudo /bin/touch /home/me/ding_dong, it shows up right away. Obviously missing something stupid here.

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• Can a Cisco 3550 be used as router?

  - by kubiej21

  I'm not sure if this is the correct place to ask such a question, but I'll give it a shot anyway. If it isn't, let me know, and I'll remove this post. Anyway, very recently I picked up a Cisco 3550 just to play around with networking and to familiarize myself with Cisco's command line configuration due to the fact that I will be working an electrical engineering internship in which I will have to deal with various networking issues (yes, I agree that a CSNA would be much better suited for this task, but since its part of the job requirements, I'm willing to learn about it). What I was wondering, is whether or not my 3550 can act as a router. I know its a L3 switch, but does that mean it can take the place of a router?

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• Sync local files to S3 similar to Robocopy

  - by Yuck

  I am looking for a way to synchronize an entire local folder structure to Amazon S3, similar to how one might synchronize two folders using Robocopy. Whatever solution I come up with needs to be scheduled to run periodically from the Windows Task Scheduler. So anything that requires a GUI to perform the synchronization is not a viable solution. Standalone Windows .EXE command line utility for Amazon S3 & EC2 looked promising, but seems to have been abandoned and would not work when I tried to use it. Possibly a difference in the way that security is handled now compared to that software's most recent release.

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• Windows Mobile 6.5 Remote desktop

  - by mpop

  I am trying to help a friend out, we have gotten him able to connect via his windows mobile 6.5 phone to his computer via remote desktop. The problem we are running into is that the program that he needs to be able to access does not work at lower resolutions (such as his phone has) and most of the program screen is cut off (it is a VB program) Is there a way to have a "higher" resolution on the screen being sent to the Windows Mobile 6.5 phone and just have him scroll up and down on the screen? Right now replacing the phone is not an option (it might be 6 months down the line, but for now it is not an option).

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• Postfix + LDAP + Recipient Delimiter

  - by Coops

  I'm trying to get my Postfix and LDAP-backend to accept recipent delimiters (aka address extensions). The rest of the mail system is working fine, but when an email is received with an extension (e.g. [email protected]), it tries to look up "coops+test" against the LDAP service and fails. Obviously this is wrong, and it should strip out the "+test" part. In my postfix config the string being passed to the LDAP service is "%s", per an example line below: accounts_query_filter = (&(objectClass=MailAccount)(mail=%s)(accountActive=TRUE)(delete=FALSE)) Is there a postfix variable which represents the email account minus the extension? I've found a similar post here, but no actual solution.

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• VMWare Input/Output error on ubuntu host Win7 guest

  - by CShipley

  I am running ubuntu 10.10 as my host with Windows 7 as the guest. About a couple weeks ago I started getting error pop-ups from vmware reporting inability to read or write to a particular file. On futher investigation, I've noticed that I cannot copy that particular file from the linux command line even as root. I get the same input/output error. The SMART utility tells me I have 69 bad sectors on the disk (it is 1 TB) So my question is 1) How do I tell if that HD is going bad? 2) How can I move the VM files to a different part of the disk if I get read/write errors when I try to copy?

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• Using (embedding?) wireshark in a C application for sniffing

  - by happy_emi

  I'm writing a C/C++ application which needs (among other things) to sniff packets and save the output in a file. This file will be read and processed by wireshark after a few days, using a LUA script to do some other stuff. My question is for the sniffing part which must be provided by my application. I can see two ways to do this: 1) Fork the wireshark process in background (of course using the command line version) 2) Using wireshark as library: no forking but include stuff like "wireshark.h" and link against libwireshark.so, thus using function calls to do the sniffing. So far I haven't found any documentation about #2 and it seems that #1 is the "right way" to embed sniffing capabilities in my code. Do you think I'm doing he right thing? Does wireshark allow embedding as a library?

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• How do I block my ISP from framing websites?

  - by PJB

  I've noticed recently, as of today, that all the websites I visit (except for a specific few sites such as Google) are all put into a frame. I'm not sure what the reason for this is, there are no ads displayed and everything appears normal. The only reason I found out is because the headers weren't loading correctly and none of the page titles showed up properly - I quickly checked the source code and saw that instead of the source of the page I was expecting to see, there was a single line with a frame. I first thought maybe somekind of trojan, but after going through various checks I've determined it's my ISP and/or somekind of Internet Registry (I traced the IP shown in the source code) What can be done to prevent this frame, short of using a VPN? I feel like I am being spied on. PS: I'm located in South Korea.

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• How to open http for linux server

  - by wtfcoder

  I am a Windows (IIS) software engineer, but recently I've been thrown into a Linux server admin role until we can find someone to fill the position. I am not ashamed to admit I have no idea what I am doing. Currently the problem I am trying to solve is that the server is only responding to https requests. However, we need it to respond to standard http requests as well. We don't really have anything that needs to stay secure on its way to the requester. I am running redhat linux via bash. If anyone could tell me how to enable http requests I would really appreciate it! Thanks Please make sure your response is fairly step by step as I have minimal command line experience :/

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• (core dumped) ${TOMCAT_START}?

  - by Farticle Pilter

  I am running COMSOL (a scientific software) as a server, to which MATLAB is connected to. After a while, COMSOL aborted with the following error message. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolbatch.ini Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolserver.ini COMSOL 4.4 (Build: 150) started listening on port 2036 Use the console command 'close' to exit the program A client with username 's' has logged on to the server from 'beads.myuniversity.edu' using port 2036. /software/linux/x86_64/comsol-4.4/bin/comsol: line 1436: 32757 Aborted (core dumped) ${TOMCAT_START} What might be the cause of this (core dumped) ${TOMCAT_START}? How may I fix it?

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• How do I simplify my URLs with Apache (or DNS)?

  - by user45015

  I'm running Apache 2.2 with WHM / cPanel. Let me know what other info you need to answer this question. I want to set up some kind of forwarding/redirect so that the following occurs: _http://appname.mydomain.com/ (ignore the underscore, couldn't post actual links) actually sends you to _http://mydomain.com:8072/appname/ This can be overt (your browser address bar changes) or not, it doesn't really matter (although if I get to pick I would prefer the address bar NOT change). My initial thought was to use a CNAME, but I've since learned you can't include a port in your cname. Now I'm thinking I have to do something with my Apache VHOST? I am very much a novice at apache / web server internal workings, but I know my way around a command line well enough.

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• Is \d equal to [0-9] in sed?

  - by user3872279

  7 00:00:30,008 --> 00:00:30,066 by line 8 00:00:31,038 --> 00:00:34,050 or later in the nineteen seventies it was usually a 9 00:00:34,005 --> 00:00:38,634^M video consul but the council was not capable of displaying arbitrate graphics 10 The above lines is in a file named 2.txt. I wanna the lines which doesn't start with number. In practice, sed -i '/^[0-9]+/d' 2.txt works good. However, sed -i '/^\d+/d' 2.txt doesnot. The \d shouldn't be equal to [0-9] in regex?

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• anoymous access and automatic mounting of a samba share from a windows system to a linux system

  - by The Journeyman geek

  I have most of my audio files on a system shared by most of the people in my family, and i'd like to be able to get them accessable to a headless linux box i control over smb. The share(s) in question are not on a share that requires authentication (and most examples assume so), and i'd like to have them automatically mounted, and accessable on boot. I'd like to only use command line tools - so anything that has x dependancies is out, and shares should be accessable to any user on the system via a mount point OS shouldn't matter, but the "fileserver" is a windows XP system, and i can access the shares without logging in, and the client is a ubuntu 10.04 lts system with a minimal CLI install.

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• Tomcat 7: Include virtual host definitions from a directory?

  - by grog_7

  I'm setting up a new Tomcat 7.0.33 server, and I'm looking for a simple way to include a directory full of virtual host definition XML files for configuration. I've found that it's possible to do XML includes from server.xml, but this requires a line in server.xml for each file, and is no less work than just having the entire config right in server.xml. I'm looking for something similar to Apache's Include directive. The end result I'm looking for is to have a directory I can drop an XML file into that Tomcat will pick up on the next restart, without having to modify server.xml. Is there a way to do this? Thanks!

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• tab completion for service command on debian

  - by markus

  I have two systems with debian squeeze installed. On one system when I type: service <TAB> it shows me all available service (from /etc/init.d) on the other system it shows me all files from the current directory. Does anyone know which setting changes that behaviour ? UPDATE: The file /etc/bash_completion.d/service was missing. I copied it from the machine where it is working. If I type complete -p | grep service it shows me: complete -F _service service On the machine where it is not working that command shows me nothing. I executed complete -F _service service in the command line, after that, the command service <TAB> shows me: service -su: completion: function `_service' not found this function is defined in the service file I recently copied, for some reasons it can't be found ...

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• After software update, why is webmin showing wrong mySQL version?

  - by teleute00

  I did a full OS/package update on a server running webmin. Now when I go into webmin, it's showing the correct new version of Ubuntu, Apache, etc...but it's still showing the old version of mySQL. At the command line, if I enter mysql -v, it shows the correct new one, but it's just not getting recognized in webmin. I found a file at /etc/webmin/mysql called "version", and it's just a text file with the version number in it. So theoretically I could just change this and it would be fine. However, this obviously doesn't seem like how this should go. How should this file normally get updated? ETA: Services have all been restarted (in fact, there's been a full reboot). Sorry for not specifying this...it just seemed like the obvious first thing to do and not worth mentioning. :-)

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• Special filename in OS X; semantics of asterisk?

  - by kbp

  So I'm using Mac OS X 10.5, and I have a file called _Mail.grxml that is being handled funny. ls -l will show the file, but ls -l * will not. It's just this one file; note ls -l | wc -l gives 43 (the number of files in the directory), but ls -l * | wc -l gives 42. So the question is -- Are there filenames that OSX just doesn't play nicely with? Or are the semantics of the * on the command line different from what I expect? (Note this is NOT the only file whose name begins with an underscore; the other files are picked up just fine by *).

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• Insert blank row on two conditions

  - by lost_my_wallet_in_el_segundo

  I have a spreadsheet with a large number of rows. There are two rows grouped together (for each customer). In column A, the first row has an account number. The second row should be blank. The spreadsheet has lots of customers listed where there is no second row. I need to insert a blank line to create a second row for each customer that doesn't have one. Here is the VBA script I cobbled together, but it gets a syntax error. Sub Macro1() ' ' Macro1 Macro ' For myrow = 1 To Cells.Find("*", SearchOrder:=xlByRows, SearchDirection:=xlPrevious).Row If Cells(myrow, 1) <> "" and Cells(myrow+1, 1) <> "" Then Selection.Insert Shift:=xlDown, CopyOrigin:=xlFormatFromLeftOrAbove End Sub

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• CTRL-X not showing the bottom menu (compatible/nocompatible issue)

  - by simendsjo

  I'm having some strange behavior in vim. When I press C-X in insert-mode, I see ^X flashing quickly in the bottom right, but I don't get the menu at the bottom. The keybindings seems to work just find anyway: C-X C-L gives me line completion. I've managed to find out how to "fix" this, but it just doesn't seem right.. set compatible? echoes nocompatible. If I set it to compatible and then back to nocompatible, everything works. Trying the following at the end of my .vimrc doesn't help, and then I get some warnings from scripts. Any idea what's causing this and how I can fix this?

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• PHP file write permission

  - by user125862

  I have two files, one php file and one log file. The permission has been changed to the following: -rwxr-x--- 1 www-data www-data 294 2012-06-25 10:17 function.php -rwxr-x--- 1 www-data www-data 0 2012-06-25 09:53 log.txt The permission is set to 750. when I call function.php, I receive the following error message fopen(log.txt): failed to open stream: Permission denied This is the line : $fp = fopen("log.txt","a"); I am very confused. I have php and the file to be written both under www-data now, so why would there be any permission problem? Please help

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• Easiest way to get feedback from an EC2 instance

  - by Sanity

  I need to run a script on an ec2 instance once a day, and I'd like to have some easy way for it to let me know if something went wrong. I would prefer not to have to modify the original image, which is a recent version of Ubuntu, so ideally I'd like to do all setup in the script I pass to the Ubuntu instance through the ec2-run-instances command. I've considered creating a gmail account for it, and letting it send email through that - but the setup was rather involved, with certificates and such things. I've looked at using the gist API, but anything uploaded through it is public. The Google command line tool also appears quite complicated to set up. Is there some easier way to do this?

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• installing php gd on ubuntu on a vps server

  - by user235196

  I was working on localhost with resizing images and everything was great. Than I uploaded to my server and things got interesting. After searching around, looks like I have to enable php-gd on my server. I tried running the line sudo apt-get install php5-gd using putty, and it didn't work. Any ideas why? Also, after the install, I assume I will need to run the function sudo reboot right? clearly I'm not an expert in this area :p

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• Server not repsonding after Ubuntu upgrade

  - by aaa

  I have a server that was running Ubuntu 8.04. I upgraded Ubuntu via the command-line and got no warning messages. After it was done the server restarted but now I am unable to SSH back in. My site is also not resolving. My guess is I overwrote something important. What are some trouble-shooting steps I can take? I am able to execute commands through my VPS provider's admin interface. I'm not sure what version it upgraded me to honestly.

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• How to Remove Header in LaTex

  - by Tim

  Hi, I would like to not show the name of each chapter on the header of its each page. I also like to have nothing in the headers for abstract, acknowledgement, table of content, list of figures and list of tables. But currently I have header on each page, for example: Here is my code when specifying these parts in my tex file \begin{abstract} ... \end{abstract} \begin{acknowledgement} ... \end{acknowledgement} % generate table of contents \tableofcontents % generate list of tables \listoftables % generate list of figures \listoffigures \chapter{Introduction} \label{chp1} %% REFERENCES \appendix \input{appendiximages.tex} \bibliographystyle{plain} %%\bibliographystyle{abbrvnat} \bibliography{thesis} Here is what I believe to be the definition of the commands. More details can be found in these two files jhu12.clo and thesis.cls. % \chapter: \def\chaptername{Chapter} % ABSTRACT % MODIFIED to include section name in headers \def\abstract{ \newpage \dsp \chapter*{\abstractname\@mkboth{\uppercase{\abstractname}}{\uppercase{\abstractname}}} \fmfont \vspace{8pt} \addcontentsline{toc}{chapter}{\abstractname} } \def\endabstract{\par\vfil\null} % DEDICATION % Modified to make dedication its own section %\newenvironment{dedication} %{\begin{alwayssingle}} %{\end{alwayssingle}} \def\dedication{ \newpage \dsp \chapter*{Dedication\@mkboth{DEDICATION}{DEDICATION}} \fmfont} \def\endacknowledgement{\par\vfil\null} % ACKNOWLEDGEMENTS % MODIFIED to include section name in headers \def\acknowledgement{ \newpage \dsp \chapter*{\acknowledgename\@mkboth{\uppercase{\acknowledgename}}{\uppercase{\acknowledgename}}} \fmfont \addcontentsline{toc}{chapter}{\acknowledgename} } \def\endacknowledgement{\par\vfil\null} \def\thechapter {\arabic{chapter}} % \@chapapp is initially defined to be '\chaptername'. The \appendix % command redefines it to be '\appendixname'. % \def\@chapapp{\chaptername} \def\chapter{ \clearpage \thispagestyle{plain} \if@twocolumn % IF two-column style \onecolumn % THEN \onecolumn \@tempswatrue % @tempswa := true \else \@tempswafalse % ELSE @tempswa := false \fi \dsp % double spacing \secdef\@chapter\@schapter} % TABLEOFCONTENTS % In ucthesis style, \tableofcontents, \listoffigures, etc. are always % set in single-column style. @restonecol \def\tableofcontents{\@restonecolfalse \if@twocolumn\@restonecoltrue\onecolumn\fi %%%%% take care of getting page number in right spot %%%%% \clearpage % starts new page \thispagestyle{botcenter} % Page style of frontmatter is botcenter \global\@topnum\z@ % Prevents figures from going at top of page %%%%% \@schapter{\contentsname \@mkboth{\uppercase{\contentsname}}{\uppercase{\contentsname}}}% {\ssp\@starttoc{toc}}\if@restonecol\twocolumn\fi} \def\l@part#1#2{\addpenalty{-\@highpenalty}% \addvspace{2.25em plus\p@}% space above part line \begingroup \@tempdima 3em % width of box holding part number, used by \parindent \z@ \rightskip \@pnumwidth %% \numberline \parfillskip -\@pnumwidth {\large \bfseries % set line in \large boldface \leavevmode % TeX command to enter horizontal mode. #1\hfil \hbox to\@pnumwidth{\hss #2}}\par \nobreak % Never break after part entry \global\@nobreaktrue %% Added 24 May 89 as \everypar{\global\@nobreakfalse\everypar{}}%% suggested by %% Jerry Leichter \endgroup} % LIST OF FIGURES % % Single-space list of figures, add it to the table of contents. \def\listoffigures{\@restonecolfalse \if@twocolumn\@restonecoltrue\onecolumn\fi %%%%% take care of getting page number in right spot %%%%% \clearpage \thispagestyle{botcenter} % Page style of frontmatter is botcenter \global\@topnum\z@ % Prevents figures from going at top of page. \@schapter{\listfigurename\@mkboth{\uppercase{\listfigurename}}% {\uppercase{\listfigurename}}} \addcontentsline{toc}{chapter}{\listfigurename} {\ssp\@starttoc{lof}}\if@restonecol\twocolumn\fi} \def\l@figure{\@dottedtocline{1}{1.5em}{2.3em}} % bibliography \def\thebibliography#1{\chapter*{\bibname\@mkboth {\uppercase{\bibname}}{\uppercase{\bibname}}} \addcontentsline{toc}{chapter}{\bibname} \list{\@biblabel{\arabic{enumiv}}}{\settowidth\labelwidth{\@biblabel{#1}}% \leftmargin\labelwidth \advance\leftmargin\labelsep \usecounter{enumiv}% \let\p@enumiv\@empty \def\theenumiv{\arabic{enumiv}}}% \def\newblock{\hskip .11em plus.33em minus.07em}% \sloppy\clubpenalty4000\widowpenalty4000 \sfcode`\.=\@m} Thanks and regards! EDIT: I just replaced \thispagestyle{botcenter} with \thispagestyle{plain}. The latter is said to clear the header (http://en.wikibooks.org/wiki/LaTeX/Page_Layout), but it does not. How shall I do? Thanks!

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• MSBuild: TlbImp error since upgrading to VS 2010

  - by floele

  Hi, since upgrading my project to VS2010, including the use of MSBuild v4 instead of 3.5 (and not making any other changes), I get the following build error and have no clue how to fix it (log from CC.NET): <target name="ResolveComReferences" success="false"> <message level="high"><![CDATA[C:\Programme\Microsoft SDKs\Windows\v7.0A\bin\TlbImp.exe c:\Assemblies\NMSDVDXU.dll /namespace:NMSDVDXLib /machine:X64 /out:obj\x64\Release\Interop.NMSDVDXLib.dll /sysarray /transform:DispRet /reference:c:\Assemblies\Bass.Net.dll /reference:c:\Assemblies\LogicNP.FileView.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorlib.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Design.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Drawing.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Management.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Windows.Forms.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /reference:C:\WINDOWS\assembly\GAC\stdole\7.0.3300.0__b03f5f7f11d50a3a\stdole.dll ]]></message> <error code="TI0000" file="TlbImp"><![CDATA[A single valid machine type compatible with the input type library must be specified.]]></error> <warning code="MSB3283" file="C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets" line="1558" column="9"><![CDATA[Die Wrapperassembly für die Typbibliothek "NMSDVDXLib" wurde nicht gefunden.]]></warning> <message level="high"><![CDATA[C:\Programme\Microsoft SDKs\Windows\v7.0A\bin\TlbImp.exe c:\Assemblies\StarBurnX12.dll /namespace:RocketDivision.StarBurnX /machine:X64 /out:obj\x64\Release\Interop.RocketDivision.StarBurnX.dll /sysarray /transform:DispRet /reference:c:\Assemblies\Bass.Net.dll /reference:c:\Assemblies\LogicNP.FileView.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorlib.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Design.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Drawing.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Management.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Windows.Forms.dll /reference:C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /reference:C:\WINDOWS\assembly\GAC\stdole\7.0.3300.0__b03f5f7f11d50a3a\stdole.dll ]]></message> <error code="TI0000" file="TlbImp"><![CDATA[A single valid machine type compatible with the input type library must be specified.]]></error> <warning code="MSB3283" file="C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets" line="1558" column="9"><![CDATA[Die Wrapperassembly für die Typbibliothek "RocketDivision.StarBurnX" wurde nicht gefunden.]]></warning> </target> Problem: A single valid machine type compatible with the input type library must be specified. It only applies to the x64 build of my project, x86 still works fine. Apparently, it tries to build a x64 interop assembly from the x86 DLL located in "C:\Assemblies". When executing the TlbImp command with the x64 DLL which is located in a different directory, it works fine. However, I don't know how I can configure my project to use different COM references for the x86 and x64 build. The OS on which the project is being compiled is WinXP x86. Building worked fine when using VS2005 + MSBuild 3.5 Any help would be highly appreciated. I tried building the upgraded project with MSBuild v3.5, but that doesn't work either. It complains about unknown NoWarn codes (probably new in 4.0).

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