How can a warrant be issued against someone if they were never informed of the charge?

The general rule is that warrants issue upon probable cause.  Therefore, if the officers had probable cause to believe that the person committed the Burglary, then they had the authority to issue a warrant within the statute of limitations for the crime.  Once the warrant was issued, the fact that the subject of the warrant did not know of its existence is of no relevance.  He/she may have been on the run, or out of the country, or may have otherwise been unreachable.  In any event, if there is a warrant out for their arrest, they  need to hire an attorney to arrange for their peaceful surrender and to begin to develop a strategy to defend the charge.  Good luck.