TypeError: Cannot read property 'constructor' of null #160

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1. natefaubion commented on Aug 21, 2018

   

   natefaubion

   on Aug 21, 2018

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   Thanks for the bug report! Without any specific information or a reproduction, it's very unlikely it will get addressed directly. If it looks related to an existing closed issue, please make sure you are using the latest release.
2. Unisay commented on Aug 21, 2018

   

   Unisay

   on Aug 21, 2018

   Last edited by Unisay

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   I am happy to provide information needed:

   • Aff version 5.0.0
   • Pulp version 12.3.0
   • purs version 0.12.0

   Unfortunately I am not allowed to share the code needed to reproduce the problem, but here is an excerpt:

   type Sel a = Selenium Unit () a
   
   bootstrapSpec :: Path -> Array Capabilities -> Sel Unit -> Aff Unit
   bootstrapSpec path capabilities sel = do
     creds <- BrowserStack.lookupCredentials
     lowerCodensity do
       BrowserStack.proxy creds
       liftCodensity $ parTraverse_ capabilities \caps -> lowerCodensity do
         drv <- driver creds caps
         liftCodensity do
           url <- determineSutUrl path
           Selenium.get drv url
           log "Running test case..."
           runReaderT sel { driver: drv, defaultTimeout: Milliseconds 20000.0 }
           log "Test case completed."
3. Unisay commented on Aug 21, 2018

   

   Unisay

   on Aug 21, 2018

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   After changing parTraverse_ to forM_ - the error is gone (as well as parallelism)
4. natefaubion commented on Aug 21, 2018

   

   natefaubion

   on Aug 21, 2018

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   Have you tried upgrading to 5.0.1, which has the fix for the bug you referenced?