# CTKAPPLAUNCHER error with custom Slicer build in Visual Studio **URL:** \ **Category:** Support\ **Created:** [March 3, 2020, 8:25am UTC](https://discourse.slicer.org/t/ctkapplauncher-error-with-custom-slicer-build-in-visual-studio/10513 "2020-03-03T08:25:46Z")\ **Posts on this page:** 3\ **Page:** 1

**Author:** ![aptirumalai](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/aptirumalai/32/6198_2.png) [@aptirumalai](https://discourse.slicer.org/u/aptirumalai)\ **Post date:** [March 3, 2020, 8:25am UTC](https://discourse.slicer.org/t/ctkapplauncher-error-with-custom-slicer-build-in-visual-studio/10513/1 "2020-03-03T08:25:47Z")

I am getting failures with a custom Slicer application that Kitware had helped us develop 3 years ago. Most of the projects build fine. The issue is with the CTKAPPLAUNCHER project. From what I can tell, it appears to have to do with a failure to download CTKAppLauncher-0.1.14-win-i386.tar.gz from [packages.kitware.com](http://packages.kitware.com). This used to work fine. This application is built in Visual Studio 2013 Community Edition. Here’s the relevant build output: InitializeBuildStatus: Touching “x64\Release\CTKAPPLAUNCHER\CTKAPPLAUNCHER.tlog\unsuccessfulbuild”. CustomBuild: Building Custom Rule C:/D/SPMTR-rel/Slicer/CMakeLists.txt CMake does not need to re-run because C:\D\SPMTR-rel\S-bld\CMakeFiles\generate.stamp is up-to-date. Creating directories for ‘CTKAPPLAUNCHER’ Performing download step (download, verify and extract) for ‘CTKAPPLAUNCHER’ – downloading… src=‘[http://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz](http://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz)’ dst=‘C:/D/SPMTR-rel/S-bld/CTKAPPLAUNCHER-prefix/src/method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz’ timeout=‘none’ – [download 100% complete] CMake Error at CTKAPPLAUNCHER-prefix/src/CTKAPPLAUNCHER-stamp/download-CTKAPPLAUNCHER.cmake:27 (message): CUSTOMBUILD : error : downloading [C:\D\SPMTR-rel\S-bld\CTKAPPLAUNCHER.vcxproj] ‘[http://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz](http://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz)’ failed ``` status_code: 22 status_string: "HTTP response code said error" log: timeout on name lookup is not supported Hostname was NOT found in DNS cache Trying 66.194.253.18... Connected to packages.kitware.com (66.194.253.18) port 80 (#0) GET /api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz HTTP/1.1 User-Agent: curl/7.38.0 Host: packages.kitware.com Accept: */* HTTP/1.1 301 Moved Permanently Date: Mon, 02 Mar 2020 21:28:05 GMT Server Apache is not blacklisted Server: Apache X-Frame-Options: SAMEORIGIN Location: https://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz Content-Length: 332 Content-Type: text/html; charset=iso-8859-1 Ignoring the response-body 301 Moved Permanently

Moved Permanently

The document has moved here.

Connection #0 to host packages.kitware.com left intact Issue another request to this URL: 'https://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz' Found bundle for host packages.kitware.com: 0x2677a30 timeout on name lookup is not supported Hostname was NOT found in DNS cache Trying 66.194.253.18... Connected to packages.kitware.com (66.194.253.18) port 443 (#1) schannel: SSL/TLS connection with packages.kitware.com port 443 (step 1/3) schannel: disable server certificate revocation checks schannel: sending initial handshake data: sending 176 bytes... schannel: sent initial handshake data: sent 176 bytes schannel: SSL/TLS connection with packages.kitware.com port 443 (step 2/3) schannel: failed to receive handshake, need more data schannel: SSL/TLS connection with packages.kitware.com port 443 (step 2/3) schannel: encrypted data buffer: offset 2988 length 4096 schannel: sending next handshake data: sending 126 bytes... schannel: SSL/TLS connection with packages.kitware.com port 443 (step 2/3) schannel: encrypted data buffer: offset 274 length 4096 schannel: SSL/TLS handshake complete schannel: SSL/TLS connection with packages.kitware.com port 443 (step 3/3) schannel: incremented credential handle refcount = 1 schannel: stored credential handle in session cache GET /api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz HTTP/1.1 User-Agent: curl/7.38.0 Host: packages.kitware.com Accept: */* schannel: client wants to read 16384 bytes schannel: encrypted data buffer: offset 0 length 16384 schannel: encrypted data got 521 schannel: encrypted data buffer: offset 521 length 16384 schannel: decrypted data length: 492 schannel: decrypted data added: 492 schannel: decrypted data cached: offset 492 length 16384 schannel: decrypted data buffer: offset 492 length 16384 schannel: decrypted data returned 492 schannel: decrypted data buffer: offset 0 length 16384 ``` CUSTOMBUILD : The requested URL returned error : 403 Forbidden [C:\D\SPMTR-rel\S-bld\CTKAPPLAUNCHER.vcxproj] ``` Closing connection 1 schannel: shutting down SSL/TLS connection with packages.kitware.com port 443 schannel: clear security context handle schannel: decremented credential handle refcount = 0 ``` Done Building Project “C:\D\SPMTR-rel\S-bld\CTKAPPLAUNCHER.vcxproj” (default targets) – FAILED. ---

**Author:** ![Sam\_Horvath](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sam_horvath/32/3092_2.png) [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\ **Post date:** [March 3, 2020, 3:45pm UTC](https://discourse.slicer.org/t/ctkapplauncher-error-with-custom-slicer-build-in-visual-studio/10513/2 "2020-03-03T15:45:00Z")

Hi: I am looking at this and will get back to you. ---

**Author:** ![aptirumalai](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/aptirumalai/32/6198_2.png) [@aptirumalai](https://discourse.slicer.org/u/aptirumalai)\ **Post date:** [March 7, 2020, 10:37pm UTC](https://discourse.slicer.org/t/ctkapplauncher-error-with-custom-slicer-build-in-visual-studio/10513/3 "2020-03-07T22:37:04Z")

Sam, I have been looking into this too - just trying to get it to build to make some progress. This is what I have discovered so far. - The issue is with the CTKAPPLAUNCHER project - CTKAPPLAUNCHER-prefix\src\CTKAPPLAUNCHER-stamp\download-CTKAPPLAUNCHER.cmake is where the issue originates. There is a file download command here: ```auto file(DOWNLOAD "http://packages.kitware.com/api/rest?method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz" "C:/W/SPMTR-rel/S-bld/CTKAPPLAUNCHER-prefix/src/method=midas.item.download&id=7565&dummy=CTKAppLauncher-0.1.14-win-i386.tar.gz" SHOW_PROGRESS # no TIMEOUT STATUS status LOG log) ``` - This download fails - apparently this tar.gz file does not exist on [packages.kitware.com](http://packages.kitware.com) any more. - I was able to find this tar.gz file at: [https://github.com/commontk/AppLauncher/releases/tag/v0.1.14](https://github.com/commontk/AppLauncher/releases/tag/v0.1.14) - I downloaded this file. - I then modified the following files to use this downloaded file instead: download-CTKAPPLAUNCHER.cmake verify-CTKAPPLAUNCHER.cmake extract-CTKAPPLAUNCHER.cmake This hack appears to at least successfully build CTKAPPLAUNCHER Just wanted to share this with you. Regards, Arun PS: JC was our principal consultant at Kitware when we worked on this about 3 years back. So he might be worth asking. We had a contract with Kitware for this work.