# Package precompilation fails after updating to 1.6.0

**URL:** <https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004>\
**Category:** General Usage\
**Created:** [March 26, 2021, 10:42am UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004 "2021-03-26T10:42:22Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Geometh](https://avatars.discourse-cdn.com/v4/letter/g/34f0e0/32.png) [@Geometh](https://discourse.julialang.org/u/Geometh)\
**Post date:** [March 26, 2021, 10:42am UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/1 "2021-03-26T10:42:22Z")

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Hi everyone,

I am a package Developer (WavesAndEigenvalues.jl) and just updated my local Julia installation to v1.6.0. Unfortunately this leads to my local development branch failing precompilation and eventually rendering it unusable. I don’t really get what’s wrong there and am a bit puzzled with getting anything useful from the error report.

I get this weird when instantiating my package.

 ![Bildschirmfoto 2021-03-26 um 11.33.27](https://global.discourse-cdn.com/julialang/original/3X/5/8/5874f748456be10817f9a275231627a858d5e082.png)

Clearly its something in my package that’s wrong but I am lost. Whats even more irritating to me, is that our latest stable release that is available from the registry runs without any problems and I haven’t change the dependencies.

Any help is very much appreciated.  
Thank You  
G

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<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 26, 2021, 11:41am UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/2 "2021-03-26T11:41:27Z")

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What do it say when you try `using WavesAndEigenValues`?

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<div class="post-metadata">

**Author:** ![Geometh](https://avatars.discourse-cdn.com/v4/letter/g/34f0e0/32.png) [@Geometh](https://discourse.julialang.org/u/Geometh)\
**Post date:** [March 26, 2021, 12:15pm UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/3 "2021-03-26T12:15:26Z")

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Hi Kristoffer,

when I run

```julia
import Pkg
Pkg.activate(".")
using WavesAndEigenvalues.jl

```

while my working directory is the local development version of the WavesAndEigenvalues repo.

I get this:

 ![Bildschirmfoto 2021-03-26 um 13.13.35](https://global.discourse-cdn.com/julialang/original/3X/0/4/049c32fc6bb6552aa6b9a99ab2dc9e7c49701b77.png)

 ![Bildschirmfoto 2021-03-26 um 13.14.44](https://global.discourse-cdn.com/julialang/original/3X/d/7/d723d87d43e1618db669f79d47e46de04581cf08.png)

Thank you  
G

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<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 26, 2021, 12:17pm UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/4 "2021-03-26T12:17:04Z")

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Did you try follow the hint that the error message gave? Add a `Pkg.instantiate()` before the `using`.

---

<div class="post-metadata">

**Author:** ![Geometh](https://avatars.discourse-cdn.com/v4/letter/g/34f0e0/32.png) [@Geometh](https://discourse.julialang.org/u/Geometh)\
**Post date:** [March 26, 2021, 12:46pm UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/5 "2021-03-26T12:46:32Z")

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Jap.

When changing the code to

```julia
import Pkg
Pkg.instantiate()
Pkg.activate(".")
using WavesAndEigenvalues

```

I get

 ![Bildschirmfoto 2021-03-26 um 13.38.00](https://global.discourse-cdn.com/julialang/original/3X/7/8/785fd3f22f2ac8a38a08f0f25763f87574e6bc7b.png)  
 ![Bildschirmfoto 2021-03-26 um 13.40.18](https://global.discourse-cdn.com/julialang/original/3X/8/9/89dd9acf357a9bb50ca5ed1bfc66715f5276bcef.png)

When instantiating after activating the package environment, i.e.,

```julia
import Pkg
Pkg.activate(".")
Pkg.instantiate()
using WavesAndEigenvalues

```

I get

 ![Bildschirmfoto 2021-03-26 um 13.44.59](https://global.discourse-cdn.com/julialang/original/3X/9/a/9a1c00170e978b71fd0784cd9336af5f229bc6de.png)  
 ![Bildschirmfoto 2021-03-26 um 13.45.50](https://global.discourse-cdn.com/julialang/original/3X/7/1/713d9683be364d16fb2370b084ff292f17f01807.png)

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<div class="post-metadata">

**Author:** ![Jmcjack](https://avatars.discourse-cdn.com/v4/letter/j/e19adc/32.png) [@Jmcjack](https://discourse.julialang.org/u/Jmcjack)\
**Post date:** [June 18, 2021, 8:21pm UTC](https://discourse.julialang.org/t/package-precompilation-fails-after-updating-to-1-6-0/58004/6 "2021-06-18T20:21:36Z")

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Just found this thread, I ran into the same issue - what worked for me was deleting the Manifest.toml file from my package’s environment and running `] instantiate` then `] build`.