canvas and sharp cannot coexist

[strarsis]

canvas and sharp cannot coexist

Issue or Feature

sharp and canvas modules cannot coexist in same node process,
when requiring both, execution fails with a low level error:

[...]/node_modules/sharp/build/Release/../../lib/libgio-2.0.so.0: undefined symbol: g_option_group_unref
    at Error (native)
    at Object.Module._extensions..node (module.js:568:18)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> ([...]/node_modules/sharp/index.js:12:13)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> ([...]/test.js:1:76)

Steps to Reproduce

var Canvas = require('canvas'),
    sharp  = require('sharp');

Your Environment

• node v6.3.0
• canvas@1.5.0
• sharp@0.16.0
• Debian Jessie (8)

Issue filed for sharp: lovell/sharp#575

[chearon]

Sounds like it's a library loading issue external to either project:

The tl;dr of #371 is that if you are relying on a system-wide installation of cairo for node-canvas then you should also rely on a system-wide installation of libvips for sharp.

Either use canvas-prebuilt or have both of them use system-wide libraries

[zbjornson]

@strarsis if you're still looking for a solution, please check out #930.