为什么我会得到一个不明确的专栏名称＆＃34; SQLite中的错误？

Question

我无法弄清楚为什么我会收到错误。该调用工作正常，直到我添加了第二个where子句。

ambiguous column name: nanoProd.name: 
SELECT 
nanoProd.name AS prodName,
nanoProd.intro AS prodIntro,
nanoProd.prodText AS nanoText, 
nanoFiles.fileLoc AS nanoFile 
FROM nanoProd 
LEFT JOIN nanoRelFiles on nanoFiles.rid = nanoRelFiles.file_id 
LEFT JOIN nanoProd on nanoProd.rid = nanoRelFiles.item_id 
WHERE nanoRelFiles.scr_type = 'prod' AND nanoRelFiles.fileUse = 'list'