每当我尝试在Node.js中使用png-js时,我都会遇到这个奇怪的错误:
/home/anderson/node_modules/png-js/png-node.js:152
b1 = this.data[this.pos++] << 24;
^
TypeError: Cannot read property '8' of undefined
at PNG.readUInt32 (/home/anderson/node_modules/png-js/png-node.js:152:21)
at new PNG (/home/anderson/node_modules/png-js/png-node.js:56:26)
at /home/anderson/node_modules/png-js/png-node.js:34:15
at [object Object].<anonymous> (fs.js:88:5)
at [object Object].emit (events.js:67:17)
at Object.oncomplete (fs.js:1059:12)
以下是产生此输出的程序:
var PNG = require('png-js');
PNG.decode('some.png', function(pixels) {
// pixels is a 1d array of decoded pixel data
});
过去,我已经能够毫无困难地使用png-js模块了。该模块是否可能与我安装的另一个node.js模块冲突?
答案 0 :(得分:2)
在这种特殊情况下,出现错误消息是因为名为some.png
的文件与node.js脚本不在同一文件夹中。