Compile Error after TFS Mass Check-In

Error Error
Build failed. Assembly builder could not generate final assembly
‘C:\SourceJF\Dev\BizTalk\WireTransfer\ABC.WireTransfer.Bi
zTalk.Artifacts\obj\Development\~ABC.WireTransfer.BizTalk.Artifacts.d
ll’. Access to the path
‘C:\SourceJF\Dev\BizTalk\WireTransfer\ABC.WireTransfer.Bi
zTalk.Artifacts\Orchestrations\ProcessWireTransfer.odx.cs’ is denied.