Merge pull request #363 from 47Cid/stack

Stack Error Message [S-4804]

Author: david-christiansen

message-index/messages/S-4804/does-not-match/after/package.yaml

@@ -0,0 +1,15 @@
+name:                blah
+
+dependencies:
+- base >= 4.7 && < 5
+- say >= 0.1.0.1
+
+library:
+  source-dirs: src
+
+executables:
+  blah-exe:
+    main:                Main.hs
+    source-dirs:         app
+    dependencies:
+    - blah

message-index/messages/S-4804/does-not-match/before/package.yaml

@@ -0,0 +1,15 @@
+name:                blah
+
+dependencies:
+- base >= 4.7 && < 5
+- say >= 100.2.0.1
+
+library:
+  source-dirs: src
+
+executables:
+  blah-exe:
+    main:                Main.hs
+    source-dirs:         app
+    dependencies:
+    - blah

message-index/messages/S-4804/does-not-match/index.md

@@ -0,0 +1,20 @@
+---
+title: Package version does not match Stack configuration
+---
+
+The specific version of the package is not provided by the snapshot. The error that results from `stack build` is:
+```text
+ Error: [S-4804]
+       Stack failed to construct a build plan.
+       
+       While constructing the build plan, Stack encountered the following exceptions:
+       
+       In the dependencies for blah-0.1.0.0:
+           say-0.1.0.1 from Stack configuration does not match >=100.2.0.1 
+       needed since blah is a build target.
+       
+       Some different approaches to resolving this:
+       
+         * Set 'allow-newer: true'
+           in /home/USER/.stack/config.yaml to ignore all version constraints and build anyway.
+```

message-index/messages/S-4804/index.md

@@ -0,0 +1,13 @@
+---
+title: Stack failed to construct a build plan
+summary: The package with the given name or version could not be found in the snapshot
+severity: error
+introduced: 2.9.3
+---
+
+This error occurs when Stack configuration has no package with the given name or if the version number of a package does not match the one from Stack configuration. The error covers the following situations:
+
+ * The specific package does not exist
+ * The specific version of a given package does not exist
+
+See the list of packages provided by the snapshots [Stackage](https://www.stackage.org/).

message-index/messages/S-4804/no-package/after/package.yaml

@@ -0,0 +1,14 @@
+name:                blah
+
+dependencies:
+- base >= 4.7 && < 5
+
+library:
+  source-dirs: src
+
+executables:
+  blah-exe:
+    main:                Main.hs
+    source-dirs:         app
+    dependencies:
+    - blah

message-index/messages/S-4804/no-package/before/package.yaml

@@ -0,0 +1,15 @@
+name:                blah
+
+dependencies:
+- base >= 4.7 && < 5
+- wrong-package >= 0.2
+
+library:
+  source-dirs: src
+
+executables:
+  blah-exe:
+    main:                Main.hs
+    source-dirs:         app
+    dependencies:
+    - blah

message-index/messages/S-4804/no-package/index.md

@@ -0,0 +1,17 @@
+---
+title: The package does not exist in the snapshot
+---
+
+The given package name is not provided by the snapshot. For example, `stack build` results in the error:
+```
+Error: [S-4804]
+       Stack failed to construct a build plan.
+       
+       While constructing the build plan, Stack encountered the following exceptions:
+       
+       In the dependencies for blah-0.1.0.0:
+           wrong-package must match >=0.2, but the Stack configuration has no specified version (no
+                         package with that name found, perhaps there is a typo in a package's
+                         build-depends or an omission from the stack.yaml packages list?)
+       needed since blah is a build target.
+```