The CDEntrez is from days gone by when the NCBI database could fit on cds... so it seems as though the toolkit (and you) are linking to the CD entrez library rather than the NetEntrez library. Check your makefile. Use the Nentrez application to get sequences. Here's a guide to connecting to the Entrez service by code ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools/sdkdoc/ACCESS.HTML Cheers -=Michel=- ----- Original Message ----- From: "xuying" <xuying at sibs.ac.cn> To: <biodevelopers at bioinformatics.org> Sent: Tuesday, November 25, 2003 2:17 AM Subject: [Biodevelopers] help!!! biodevelopers can anybody help me to figure out the problem? (programming with NCBI c toolkit) *************************************************************** (question 1) i always get the following error message when trying to retrieve neighbours of the seq in my code: ... lsp1 = EntrezUidLinks(TYP_SEQ, uid, TYP_SEQ); ... the error message: <<< Re-establishing Entrez Service >>> <<< Requesting Entrez service >>> [OrgProt] FATAL ERROR: NetUidLinks failure how can i solve this problem? *************************************************************** (question 2) another problem is that whenever i run the program "getseq" i get the error message [getseq] ERROR: CdEntrez module is not configured correctly. Please run EntrezCf to correct the problem. [getseq] Init failed Hit Return ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡xuying ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡xuying at sibs.ac.cn ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2003-11-25