Reporting a problem to CCP4

If you are reporting problems with using CCP4 software

CCP4 is updated on a rolling basis during which many bugs are fixed and new features added. Please ensure that you are on the latest version.

If you have found a bug with the current version. please send as much information as you can to help CCP4 staff identify and fix the problem - typically we will need to know the following:

• The version of CCP4 that you using
• The platform and operating system (as much detail as you can tell us)
• As much information about the specifics of the problem as you can give, for example:
  • In the case of installation problems, copies of the output from the installation steps, if available
  • In the case of program problems, the name of the program and the full output file up to and including the error messages. Copies of scripts used to run the programs, or the CCP4i or CCP4i2 parameter files (if appropriate) are also useful.

Please send this information to us at ccp4@ccp4.ac.uk.

Problems with older versions of the suite are listed at the problems pages.

If you wish to post to CCP4bb

The CCP4 Bulletin Board is a very active community resource for discussions of relevance to macromolecular crystallographers. Questions of scientific content are best addressed here. Note that you will first need to be correctly subscribed to the list; details can be found on the CCP4bb page.

To post to CCP4bb, register as above then send an e-mail to ccp4bb@dl.ac.uk.