Unhandled rejection Error: gm convert: Unable to open file (travis-ci)

electron-builder: ^3.5.2

I have this travis configuration (which was based on onshape-desktop-shell).

For some reason, the same configuration that I can run locally on my Ubuntu. On travis does not work (full buid log).

CI detected, so artifacts will be published if draft release exists
Installing app dependencies for arch x64 to /home/travis/build/sqlectron/sqlectron-gui/app
----------------------------------------------------
Reading icns family from /home/travis/build/sqlectron/sqlectron-gui/build/icon.icns...
  Saved 'is32' element to /tmp/electron-builder-4421G5iIHRFgWJn8/icon_16x16x32.png.
  Saved 'il32' element to /tmp/electron-builder-4421G5iIHRFgWJn8/icon_32x32x32.png.
  Saved 'ih32' element to /tmp/electron-builder-4421G5iIHRFgWJn8/icon_48x48x32.png.
  Saved 'it32' element to /tmp/electron-builder-4421G5iIHRFgWJn8/icon_128x128x32.png.
 Extracted 4 elements from /home/travis/build/sqlectron/sqlectron-gui/build/icon.icns.
Unhandled rejection Error: gm convert: Unable to open file (/tmp/electron-builder-4421G5iIHRFgWJn8/icon_256x256x32.png) [No such file or directory].
Error: Command failed: gm convert -size 96x96 /tmp/electron-builder-4421G5iIHRFgWJn8/icon_256x256x32.png -resize 96x96 /tmp/electron-builder-4421G5iIHRFgWJn8/icon_96x96x32.png
gm convert: Unable to open file (/tmp/electron-builder-4421G5iIHRFgWJn8/icon_256x256x32.png) [No such file or directory].
    at /home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/util.ts:85:18
    at ChildProcess.exithandler (child_process.js:209:5)
    at emitTwo (events.js:100:13)
    at ChildProcess.emit (events.js:185:7)
    at maybeClose (internal/child_process.js:850:16)
    at Socket.<anonymous> (internal/child_process.js:323:11)
    at emitOne (events.js:90:13)
    at Socket.emit (events.js:182:7)
    at Pipe._onclose (net.js:475:12)
From previous event:
    at Object.exec (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/util.ts:72:10)
    at resize (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/linuxPackager.ts:106:18)
    at LinuxPackager.<anonymous> (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/linuxPackager.ts:109:62)
    at [object Generator].next (native)
From previous event:
    at tsAwaiter (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/awaiter.ts:10:51)
    at Object.build (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/builder.ts:30:59)
    at Object.<anonymous> (/home/travis/build/sqlectron/sqlectron-gui/node_modules/electron-builder/src/build-cli.ts:41:2)
    at Module._compile (module.js:413:34)
    at Object.Module._extensions..js (module.js:422:10)
    at Module.load (module.js:357:32)
    at Function.Module._load (module.js:314:12)
    at Function.Module.runMain (module.js:447:10)
    at startup (node.js:146:18)
    at node.js:404:3

Does anyone has any idea why this is happening?

[develar]

@maxcnunes Thanks a lot. I decided just document that Travis env by default is outdated and must be

sudo: required
dist: trusty

[maxcnunes]

Actually building for 32 and 64 bits took a bit longer - 4 min 31 sec. But it still pretty good.