Troubleshooter or Resolver is the debut studio album by South Korean boy band Shinhwa. It was released on May 9, 1998, by SM Entertainment. The album spawned three singles that were promoted with music videos and live performances on music programs: the title track "Resolver", "Eunsha! Eunsha!", and "Sharing Forever". The album was only moderately successful upon its release, selling around 86,000 copies by September 1998.

Shinhwa is a South Korean six-member boy band based in Seoul, composed of Eric Mun, Lee Min-woo, Kim Dong-wan, Shin Hye-sung, Jun Jin, and Andy Lee. Launched by SM Entertainment on March 24, 1998, the group signed with Good Entertainment in 2004 before creating their Shinhwa Company to manage their career as a band. The band struggled initially with their first album before finding commercial success with their sophomore album T.O.P.. When their contract with SM Entertainment expired in July 2003, all six members signed with Good Entertainment and assumed creative control with the release of Brand New. That same year, members began to pursue individual careers.