topic Re: Creating/building ND - file read/write error in ArcGIS Network Analyst Questions https://community.esri.com/t5/arcgis-network-analyst-questions/creating-building-nd-file-read-write-error/m-p/63294#M609 <HTML><HEAD></HEAD><BODY><P>What SP1 did you install?&nbsp; ArcDesktop or Windows??</P></BODY></HTML> Mon, 29 Apr 2019 16:02:53 GMT JorgeGarcia-Iniguez 2019-04-29T16:02:53Z Creating/building ND - file read/write error https://community.esri.com/t5/arcgis-network-analyst-questions/creating-building-nd-file-read-write-error/m-p/63293#M608 <HTML><HEAD></HEAD><BODY><SPAN>Hi</SPAN><BR /><SPAN>I am using network analyst for the first time (as a student). I am trying to build a network dataset. After going through and completing the wizard via ArcCatalog, it says 'the network dataset has been created. Would you like to build it now?', so I click yes, then I get the error 'Build Network Dataset failed. File read/write error occurred. System junction source does not exist.' If i right click on the created ND and choose 'Build' after this I get the error 'file read/write error occurred'.&nbsp; I have sent the original data to my lecturer who has managed to create and build the ND OK, following the steps I have used, so it is some kind of issue with my computer.&nbsp; I have a new computer running Windows with 8gb RAM, and running ArcGIS 9.3 and as far as I know I have full permissions etc. Does anybody have any suggestions?</SPAN><BR /><BR /><SPAN>Update: I found an ESRI page which mentioned a similar issue when running this on a computer with over 3gb RAM. The solution involved editing the registry to minimise the amount of RAM used for the process. So I followed this. Still got the same error when creating the ND.</SPAN><BR /><BR /><SPAN>Update: I found and installed SP1 and everything seems to be working OK now. Phew.</SPAN></BODY></HTML> Thu, 02 Sep 2010 01:04:20 GMT https://community.esri.com/t5/arcgis-network-analyst-questions/creating-building-nd-file-read-write-error/m-p/63293#M608 HelenTait 2010-09-02T01:04:20Z Re: Creating/building ND - file read/write error https://community.esri.com/t5/arcgis-network-analyst-questions/creating-building-nd-file-read-write-error/m-p/63294#M609 <HTML><HEAD></HEAD><BODY><P>What SP1 did you install?&nbsp; ArcDesktop or Windows??</P></BODY></HTML> Mon, 29 Apr 2019 16:02:53 GMT https://community.esri.com/t5/arcgis-network-analyst-questions/creating-building-nd-file-read-write-error/m-p/63294#M609 JorgeGarcia-Iniguez 2019-04-29T16:02:53Z