https://forge.codesys.com/forge/talk/Engineering/thread/9b05e6525a/2020-02-27T14:06:04.875000ZRecent posts to Can new VS. old version co-exist?2020-02-27T14:06:04.875000Z2020-02-27T14:06:04.875000ZKimhttps://forge.codesys.com/u/kim/https://forge.codesys.comda8b4aeb54bb71799ea37cb882206f08569446c0

<div class="markdown_content"><p>Several versions of Codesys can co-exist for sure, I have about 12 different versions installed ranging from v3.5 SP1 to v3.5 SP8.<br/> While you await an answer from the Codesys support team, try uninstalling and re-installing them if you haven't already.</p></div>

2020-02-27T14:06:04.558000Z2020-02-27T14:06:04.558000ZSevierMhttps://forge.codesys.com/u/sevierm/https://forge.codesys.com138a18de2187754e4315d36494a93e4a58299b7b

<div class="markdown_content"><p>Hello gang,</p> <p>I started my work with version <strong>3.5 SP 4</strong> then later installed <strong>3.5 SP 8</strong>. I new find that SP 4 version still launches but when I try to open any projects I get and error saying:</p> <p>Internal error while object 'Device' is providing language model information: stDisplayName</p> <p>Any ideas as to what is going wrong?</p></div>