1170892 - DevTools Ruler doesn't do anything, error in Browser Console say "environment.chromeWindow is not available in runAt:server commands"

Status: RESOLVED DUPLICATE of bug 1164887

(DevTools :: General, defect)

Description

[Jared Wein [:jaws] (please needinfo? me)]

STR:
On 2015-06-02 Firefox Nightly on Windows 8.1
Enable the Ruler feature of devtools
Click on the Ruler button
Look in the Browser Console

ER:
The ruler should have worked

AR:
The console says: Object { isTypedData: true, data: Object, type: "error" }
Clicking on the `data` object within the object shows the following error:
filename: resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/actors/gcli.js
message: environment.chromeWindow is not available in runAt:server commands
stack:
"GcliActor<._getRequisition/this._requisitionPromise</environment.chromeWindow@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/actors/gcli.js:256:17exports.items<.exec@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/gcli/commands/rulers.js:59:9Requisition.prototype.exec/<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/gcli/cli.js:2073:16createAsyncFunction/asyncFunction@resource://gre/modules/Task.jsm:239:18Task_spawn@resource://gre/modules/Task.jsm:164:12exports.exec@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/gcli/util/host.js:72:10Requisition.prototype.exec@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/gcli/cli.js:2072:14Requisition.prototype.updateExec/<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/gcli/cli.js:2112:12Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:887:23this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:766:7this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:707:39Promise*this.PromiseWalker.scheduleWalkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:707:7this.PromiseWalker.schedulePromise@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:729:7Promise.prototype.then@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:427:5GcliActor<.execute<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/actors/gcli.js:116:12actorProto/</handler@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/protocol.js:1014:19DSC_onPacket@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/server/main.js:1464:15ChildDebuggerTransport.prototype.receiveMessage@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/devtools/transport/transport.js:742:5"