about napi version.

[xicilion]

It looks like the canvas module was compiled with an earlier version of node-addon-api, and as a result introduces a dependency on references to v8 functions, which may lead to compatibility issues with later versions of nodejs, or with non-v8 napi runtimes.

Under linux, this can be seen with objdump:

objdump -R node_modules/canvas/build/Release/canvas.node | grep v8

This command returns something like the following:

0000000000059b20 R_X86_64_JUMP_SLOT  _ZN3Nan3SetEN2v85LocalINS0_6ObjectEEENS1_INS0_5ValueEEES5_@@Base
0000000000059b30 R_X86_64_JUMP_SLOT  _Z9str_valueN2v85LocalINS_5ValueEEEPKcb@@Base
0000000000059b68 R_X86_64_JUMP_SLOT  _ZN2v816FunctionTemplate16InstanceTemplateEv
0000000000059b80 R_X86_64_JUMP_SLOT  _ZN2v812api_internal8MakeWeakEPmPvPFvRKNS_16WeakCallbackInfoIvEEENS_16WeakCallbackTypeE
0000000000059b88 R_X86_64_JUMP_SLOT  _ZN2v816FunctionTemplate11GetFunctionENS_5LocalINS_7ContextEEE
0000000000059ba0 R_X86_64_JUMP_SLOT  _ZN2v812Float64Array3NewENS_5LocalINS_11ArrayBufferEEEmm
0000000000059bb0 R_X86_64_JUMP_SLOT  _ZN2v88TryCatch7ReThrowEv
0000000000059bc8 R_X86_64_JUMP_SLOT  _ZN2v811Uint16Array3NewENS_5LocalINS_11ArrayBufferEEEmm
0000000000059bd0 R_X86_64_JUMP_SLOT  _ZN2v88TryCatchC1EPNS_7IsolateE
0000000000059c28 R_X86_64_JUMP_SLOT  _ZN2v88internal35IsolateFromNeverReadOnlySpaceObjectEm
0000000000059c30 R_X86_64_JUMP_SLOT  _ZN2v87Context6GlobalEv
0000000000059c38 R_X86_64_JUMP_SLOT  _ZN2v88External3NewEPNS_7IsolateEPv
0000000000059c40 R_X86_64_JUMP_SLOT  _ZNK2v88External5ValueEv
0000000000059c48 R_X86_64_JUMP_SLOT  _ZN2v816FunctionTemplate3NewEPNS_7IsolateEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEENS_5LocalIS4_EENSA_INS_9SignatureEEEiNS_19ConstructorBehaviorENS_14SideEffectTypeEPKNS_9CFunctionEttt
0000000000059c80 R_X86_64_JUMP_SLOT  _ZNK2v86String6LengthEv
0000000000059ce0 R_X86_64_JUMP_SLOT  _ZNK2v86Object18InternalFieldCountEv
0000000000059cf0 R_X86_64_JUMP_SLOT  _ZNK2v85Value8ToStringENS_5LocalINS_7ContextEEE
0000000000059d00 R_X86_64_JUMP_SLOT  _ZN5Image10InitializeEN2v85LocalINS0_6ObjectEEE@@Base
0000000000059d18 R_X86_64_JUMP_SLOT  _ZN2v812api_internal17FromJustIsNothingEv
0000000000059d50 R_X86_64_JUMP_SLOT  _ZNK2v84Date7ValueOfEv
0000000000059d68 R_X86_64_JUMP_SLOT  _ZN2v820EscapableHandleScopeC1EPNS_7IsolateE
0000000000059db8 R_X86_64_JUMP_SLOT  _ZNK2v88Function11NewInstanceENS_5LocalINS_7ContextEEEiPNS1_INS_5ValueEEE
0000000000059de8 R_X86_64_JUMP_SLOT  _ZN2v815ArrayBufferView6BufferEv
0000000000059df8 R_X86_64_JUMP_SLOT  _ZN2v86Object38SlowGetAlignedPointerFromInternalFieldEi
0000000000059e30 R_X86_64_JUMP_SLOT  _ZN12ImageBackend10InitializeEN2v85LocalINS0_6ObjectEEE@@Base
0000000000059e48 R_X86_64_JUMP_SLOT  _ZN2v87Integer15NewFromUnsignedEPNS_7IsolateEj
0000000000059e68 R_X86_64_JUMP_SLOT  _ZN2v816FunctionTemplate11HasInstanceENS_5LocalINS_5ValueEEE
0000000000059e80 R_X86_64_JUMP_SLOT  _ZNK2v85Value8IsUint32Ev
0000000000059eb8 R_X86_64_JUMP_SLOT  _ZN7Backend4initERKN3Nan20FunctionCallbackInfoIN2v85ValueEEE@@Base
0000000000059ed0 R_X86_64_JUMP_SLOT  _ZN2v88Function4CallENS_5LocalINS_7ContextEEENS1_INS_5ValueEEEiPS5_
0000000000059f10 R_X86_64_JUMP_SLOT  _ZNK2v812BackingStore4DataEv
0000000000059f38 R_X86_64_JUMP_SLOT  _ZN7Pattern10InitializeEN2v85LocalINS0_6ObjectEEE@@Base
0000000000059f50 R_X86_64_JUMP_SLOT  _ZN2v814ObjectTemplate11NewInstanceENS_5LocalINS_7ContextEEE
0000000000059fa0 R_X86_64_JUMP_SLOT  _ZN2v811HandleScopeD1Ev
0000000000059fc0 R_X86_64_JUMP_SLOT  _ZN3Nan3imp9ToFactoryIiE7convertEN2v85LocalINS3_5ValueEEE@@Base
0000000000059fc8 R_X86_64_JUMP_SLOT  _ZNK2v85Value11NumberValueENS_5LocalINS_7ContextEEE
0000000000059fd0 R_X86_64_JUMP_SLOT  _ZN2v811ArrayBuffer15GetBackingStoreEv
0000000000059fe0 R_X86_64_JUMP_SLOT  _ZN3Nan3GetEN2v85LocalINS0_6ObjectEEENS1_INS0_5ValueEEE@@Base
0000000000059ff0 R_X86_64_JUMP_SLOT  _ZN9Context2d11setFillRuleEN2v85LocalINS0_5ValueEEE@@Base
000000000005a020 R_X86_64_JUMP_SLOT  _ZN2v87Isolate17GetCurrentContextEv
000000000005a068 R_X86_64_JUMP_SLOT  _ZNK2v85Value8ToObjectENS_5LocalINS_7ContextEEE
000000000005a098 R_X86_64_JUMP_SLOT  _ZNK2v85Value8IsNumberEv
000000000005a0d0 R_X86_64_JUMP_SLOT  _ZN2v814ObjectTemplate21SetInternalFieldCountEi
000000000005a0e8 R_X86_64_JUMP_SLOT  _ZN2v87Context10GetIsolateEv
000000000005a100 R_X86_64_JUMP_SLOT  _ZN2v88Template3SetENS_5LocalINS_4NameEEENS1_INS_4DataEEENS_17PropertyAttributeE
000000000005a138 R_X86_64_JUMP_SLOT  _ZN2v86Object3GetENS_5LocalINS_7ContextEEENS1_INS_5ValueEEE

Example:

000000000005a0e8 R_X86_64_JUMP_SLOT  _ZN2v87Context10GetIsolateEv

is a reference to v8::Context::GetIsolate().

In order to fix this issue, it may be necessary to change to a newer version node-addon-api and do some testing.

[zbjornson]

Please provide the issue in the issue template. Unless you're installing from GitHub, you're using the NAN version still, as we haven't published the NAPI release yet.