Master-slave system: windows2012 R2
Environment is configured parameters, start the alert log an error is as follows: after the CAPTURE data are not synchronized, online to find an article
https://support.oracle.com/knowledge/Oracle%20Database%20Products/1322722_1.html
According to the above said Modified source global database name. Try to modify the main library global_name, again still not quote the same wrong!!!!!!

ORA - 26840: STREAMS unable to identify an apply for the source database "".
ORA - 26840: STREAMS unable to identify an apply for the source database "ZHQC1".
ORA - 02063: preceding line from ZHQC2

The main library: global_name: ZHQC1,
From the library: global_name: ZHQC2,
SID: database ZHQC