# ptxas fatat Input file could not be opened , nvcc exited with code 255 **URL:** \ **Category:** CUDA Setup and Installation\ **Created:** [August 25, 2017, 10:02pm UTC](https://forums.developer.nvidia.com/t/ptxas-fatat-input-file-could-not-be-opened-nvcc-exited-with-code-255/52903 "2017-08-25T22:02:33Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![islam\_elgarhi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@islam\_elgarhi](https://forums.developer.nvidia.com/u/islam_elgarhi)\ **Post date:** [August 25, 2017, 10:02pm UTC](https://forums.developer.nvidia.com/t/ptxas-fatat-input-file-could-not-be-opened-nvcc-exited-with-code-255/52903/1 "2017-08-25T22:02:33Z")
[b][b]Hello, help PLZ ,Now Cuda programs Stoped to build on vs2013 with this error [/b] [/b] 1\> c:\Users\Elgarhy\documents\visual studio 2013\Projects\TTTTTTTTTTTTTTTTTT\TTTTTTTTTTTTTTTTTT\>“C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\bin\nvcc.exe” -gencode=arch=compute\_20,code="sm\_20,compute\_20" --use-local-env --cl-version 2013 -ccbin “C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\x86\_amd64” -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\include" --keep-dir x64\Debug -maxrregcount=0 --machine 64 --compile -cudart static -g -DWIN32 -DWIN64 -D\_DEBUG -D\_CONSOLE -D\_MBCS -Xcompiler “/EHsc /W3 /nologo /Od /Zi /RTC1 /MDd " -o x64\Debug\kernel.cu.obj “c:\Users\Elgarhy\documents\visual studio 2013\Projects\TTTTTTTTTTTTTTTTTT\TTTTTTTTTTTTTTTTTT\kernel.cu” 1\> ptxas fatal : Input file ‘C:/Users/Elgarhy/AppData/Local/Temp/tmpxft\_000010c8\_00000000-4\_kernel.ptx’ could not be opened 1\> ptxas fatal : Ptx assembly aborted due to errors 1\> kernel.cu 1\>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\BuildCustomizations\CUDA 7.5.targets(604,9): error MSB3721: The command ““C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\bin\nvcc.exe” -gencode=arch=compute\_20,code="sm\_20,compute\_20" --use-local-env --cl-version 2013 -ccbin “C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\x86\_amd64” -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\include” -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\include” --keep-dir x64\Debug -maxrregcount=0 --machine 64 --compile -cudart static -g -DWIN32 -DWIN64 -D\_DEBUG -D\_CONSOLE -D\_MBCS -Xcompiler “/EHsc /W3 /nologo /Od /Zi /RTC1 /MDd " -o x64\Debug\kernel.cu.obj “c:\Users\Elgarhy\documents\visual studio 2013\Projects\TTTTTTTTTTTTTTTTTT\TTTTTTTTTTTTTTTTTT\kernel.cu”” exited with code 255. ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== ---
**Author:** ![Robert\_Crovella](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/robert_crovella/32/14043_2.png) [@Robert\_Crovella](https://forums.developer.nvidia.com/u/Robert_Crovella)\ **Post date:** [August 25, 2017, 10:32pm UTC](https://forums.developer.nvidia.com/t/ptxas-fatat-input-file-could-not-be-opened-nvcc-exited-with-code-255/52903/2 "2017-08-25T22:32:52Z")
This is the problem: ```auto ptxas fatal : Input file 'C:/Users/Elgarhy/AppData/Local/Temp/tmpxft_000010c8_00000000-4_kernel.ptx' could not be opened ``` Out of disk space? Incorrect permissions? ---
**Author:** ![islam\_elgarhi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@islam\_elgarhi](https://forums.developer.nvidia.com/u/islam_elgarhi)\ **Post date:** [August 26, 2017, 6:18pm UTC](https://forums.developer.nvidia.com/t/ptxas-fatat-input-file-could-not-be-opened-nvcc-exited-with-code-255/52903/3 "2017-08-26T18:18:10Z")
Thanks txbob but what you mean with permission and disk space? for what ? ---
**Author:** ![njuffa](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@njuffa](https://forums.developer.nvidia.com/u/njuffa)\ **Post date:** [August 27, 2017, 6:17am UTC](https://forums.developer.nvidia.com/t/ptxas-fatat-input-file-could-not-be-opened-nvcc-exited-with-code-255/52903/4 "2017-08-27T06:17:15Z")
PTX files are normally intermediate files in the multi-stage compilation process. The PTX file that could not be opened by PTXAS (compiler backend) may not exist because it could not be written to disk by a previous stage, for example due to (1) lack of disk space or (2) insufficient permissions to write