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Creator 版本： 2.4.4
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目标平台： 编辑器
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重现方式：必然出现
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首个报错：
2021-06-04T00:06:35.512Z - error: TypeError: mappings.isSampler is not a function
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\editor\share\assets\meta\utils\shdc-lib.js:1:23196
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\editor\share\assets\meta\utils\shdc-lib.js:1:23733
at Object.buildEffect (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\editor\share\assets\meta\utils\shdc-lib.js:1:24410)
at module.exports.import (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\editor\share\assets\meta\effect.js:1:505)
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\asset-db\lib\tasks.js:1:4385
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:2952:28
at replenish (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:444:21)
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:449:13
at eachOfLimit$1 (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:475:34)
at awaitable(eachOfLimit$1) (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:208:32)
at module.exports.import (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\editor\share\assets\meta\effect.js:1:538)
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\asset-db\lib\tasks.js:1:4385
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:2952:28
at replenish (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:444:21)
at D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:449:13
at eachOfLimit$1 (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:475:34)
at awaitable(eachOfLimit$1) (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:208:32)
at eachOfSeries (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:662:16)
at awaitable(eachOfSeries) (D:\Program\CocosCreator\resources.editors\Creator\2.4.4\resources\app.asar\node_modules\async\dist\async.js:208:32)
新建任意一个effect，然后在fs声明一个非sampler2D的uniform，就会报错mappings.isSampler is not a function