Uncaught TypeError: this.form.getJsonValues is not a function
    at constructor.getSearchValues (SearchTool.js:1385)
    at constructor._launchSearch (SolrSearchTool.js:474)
    at Object.callback (ext-all-debug.js:8497)
    at constructor.fireHandler (ext-all-debug.js:132238)
    at constructor.onClick (ext-all-debug.js:132226)
    at constructor.fire (ext-all-debug.js:20326)
    at constructor.fire (ext-all-debug.js:32684)
    at constructor.publish (ext-all-debug.js:32660)
    at constructor.doDelegatedEvent (ext-all-debug.js:32710)
    at constructor.onDelegatedEvent (ext-all-debug.js:32697)