# How to resolve "Unable to open bsp/7\_4/connectcore9p9215\_a/ls/bootldr.dat"

**URL:** <https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061>\
**Category:** NET+OS\
**Tags:** net, os, digi-esp, bootldr, dat\
**Created:** [February 21, 2017, 2:47pm UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061 "2017-02-21T14:47:25Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![burl](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@burl](https://forums.digi.com/u/burl)\
**Post date:** [February 21, 2017, 2:47pm UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061/1 "2017-02-21T14:47:25Z")

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While trying to build my project, I encounter the following error in the Console window:

Unable to open bsp/7\_4/connectcore9p9215\_a/ls/bootldr.dat

I find the file (manually) at C:  
etos74\src\bsp\platforms\connectcore9p9215\_a\blbootldr.dat

How do I point Digi ESP to it?

I am using:  
Digi ESP for NET+OS  
Version: 1.4.0  
Build id: 03132009 NET+OS 7.4.2

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**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [February 22, 2017, 8:25am UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061/2 "2017-02-22T08:25:15Z")

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Something is worng with your project. Try to recreate it from scratch. Also Netos 7.4 is extreamly old. Please upgrade to Netos 7.5.2 with all the patches installed.

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**Author:** ![burl](https://avatars.discourse-cdn.com/v4/letter/b/47e85d/32.png) [@burl](https://forums.digi.com/u/burl)\
**Post date:** [February 22, 2017, 10:53am UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061/3 "2017-02-22T10:53:49Z")

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I appreciate the response, but I don’t think its a problem with my project. I was trying to build on Windows 10 when I ran into this error. I installed Digi ESP on Windows 7 this morning, and was able to build it.

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**Author:** ![Vincent\_Vuarnoz](https://avatars.discourse-cdn.com/v4/letter/v/cab0a1/32.png) [@Vincent\_Vuarnoz](https://forums.digi.com/u/Vincent_Vuarnoz)\
**Post date:** [June 29, 2017, 4:25pm UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061/4 "2017-06-29T16:25:50Z")

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I am running into the same issue. Did you figure out how to fix it ?  
Thanks !

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**Author:** ![Vincent\_Vuarnoz](https://avatars.discourse-cdn.com/v4/letter/v/cab0a1/32.png) [@Vincent\_Vuarnoz](https://forums.digi.com/u/Vincent_Vuarnoz)\
**Post date:** [June 29, 2017, 4:16pm UTC](https://forums.digi.com/t/how-to-resolve-unable-to-open-bsp-7-4-connectcore9p9215-a-ls-bootldr-dat/18061/5 "2017-06-29T16:16:02Z")

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Same here ! Works fine on windows 7 but error comes up on windows 10 with the same project files.